The Book of Isaiah

The Book of Isaiah is one of the longest books in the Bible. It is found in the Old Testament. It was written many years before the time of Jesus. It speaks about God, His people, and the promise of a Savior.

Isaiah was a prophet. He lived in the land of Judah around 700 years before Jesus was born. God gave him messages to speak to the people. These messages warned the people when they were doing wrong. But they also gave hope for the future.

Learn more about the life and times of Isaiah here.

The book has many parts. Some parts talk about judgment. They show what happens when people turn away from God. Other parts speak of hope. They tell of a time when God will save His people and bring peace.

Christians believe that many of Isaiah’s words point to Jesus. Isaiah speaks about someone who will suffer and save others. He talks about a child who will bring light to the world. The Church sees Jesus in these words and reads this book often, especially during Advent and Lent.

Isaiah lived in the southern kingdom of Judah. This was many years before Jesus. He spoke to the people during a time of trouble. There were wars and powerful nations nearby. The people were often afraid. They also turned away from God and followed false gods.

Isaiah was called by God to be a prophet. He spoke God’s words to the people. He told them to turn back to God. He warned them about the danger of sin. He also told them that God would not forget them.

The Book of Isaiah may have more than one author. The first part was likely written by Isaiah himself. The later parts may have been written by his followers. These followers shared Isaiah’s message and helped keep his words alive during exile.

The Church sees the whole book as important. It teaches about God’s justice and His mercy. It helps us see how God works through history. It also helps us understand Jesus better.

The Book of Isaiah is mostly written in poetry. It does not read like a story or a list of rules. The words are full of images. Isaiah uses simple pictures to show deep truths. He talks about light and darkness, trees and water, roads and mountains.

These pictures help the reader feel the message. When Isaiah speaks about a stump with a new shoot, he means hope after loss. When he says a child will lead, he means peace and new life. These word pictures stay in the mind.

Isaiah also speaks in songs. Some parts are called “servant songs.” These speak about someone who suffers to help others. The Church sees Jesus in these songs. We hear them during Holy Week.

The style of Isaiah helps us pray and think. It gives us words that reach the soul. That is why the Church reads Isaiah in Advent, Lent, and many feasts. His words are full of meaning for those who listen.

The Book of Isaiah has many important themes. These ideas help us understand God’s plan and how we should live. The Church uses these themes to teach and guide us.

Some of the main themes in Isaiah are:

• God is holy – God is good and perfect. He wants His people to follow Him and live the right way.
• Sin separates us from God – When people turn away from God, bad things happen. Isaiah warns about this.
• God is faithful – Even when people sin, God still loves them. He promises to help them and bring them back.
• A Savior will come – Isaiah speaks of someone who will save the people. He will bring peace and healing. Catholics believe this is Jesus.
• Peace and justice – Isaiah shows a future where the world is made right. People will live in peace and follow God.

These themes are important in the Catholic faith. They help us see how God worked in the past and how He still works today. They help us prepare our hearts for Jesus.

The Book of Isaiah is long. It has 66 chapters. Many people see the book in three main parts. Each part has a different focus, but all of them show how God works with His people.

Here are the three main sections:

• Chapters 1–39
  These chapters warn the people. Isaiah speaks about sin, judgment, and turning back to God. He also gives hope. In chapter 7:14, he says a young woman will have a son named Emmanuel.
• Chapters 40–55
  These chapters bring comfort. The people are in exile. Isaiah tells them that God will save them. He says in 40:1, “Comfort, give comfort to my people.” This section also includes the servant songs, like in chapter 53, which speaks of one who suffers for others.
• Chapters 56–66
  These chapters speak about a new future. The people are back home. Isaiah tells them to stay faithful. He talks about a new heaven and a new earth in chapter 65:17.

Each part builds on the one before. The message stays the same: trust in God, turn from sin, and wait for the One who will save.

The Book of Isaiah is very old, but it still speaks to us today. It shows us who God is. It helps us know what is right and what is wrong. It gives hope when things are hard.

Isaiah tells us to trust God, even when the world feels broken. He reminds us that God keeps His promises. He also shows us the way to peace and mercy.

The Church reads Isaiah in Mass during Advent, Lent, and other special times. His words help us wait for Jesus and follow Him. They help us see Jesus as the one who saves us and brings new life.

In a world full of fear, noise, and sin, Isaiah points us back to God. He helps us stay strong, faithful, and ready for what God is doing.

The Book of Isaiah is read often at Mass. It is one of the most used books in the Roman Catholic lectionary. The Church chooses many readings from Isaiah for special seasons and feast days.

During Advent, we hear Isaiah speak of hope and light. He talks about a child who will lead us (Isaiah 9:6) and a voice crying out in the desert (Isaiah 40:3). These help us prepare for Christmas.

During Lent and Holy Week, we hear the servant songs. These speak of one who suffers for others (Isaiah 53). The Church connects these readings to Jesus and His Passion.

Isaiah is also read at other times in the year. His words speak of peace, justice, and the promise of salvation. They help us listen to God and follow His way.

Sunday reading for all three liturgical cycles come from Isaiah. Click on the link for more information and resources.

The Nativity of the Lord: Christmas

God Will Not Stay Silent (Vigil Mass)

In Isaiah 62:1-5, God says He will not be quiet while His people suffer. He will make things right and show the world their goodness. He will act until His people shine like light and are lifted up again.

The people will no longer be seen as abandoned or alone. Instead, they will be seen as loved and chosen. God rejoices in them the way a groom rejoices in his bride. He stays close and never lets go.

A Light in the Darkness (Mass at Night)

In Isaiah 9:1-6, the people are in a time of darkness and sadness. God promises that things will change. He will bring light, freedom, and joy. The burdens the people carry will be taken away, and peace will come at last.

This promise is fulfilled through a child who will lead with justice and peace. His rule will never end. The Church understands this to point to Jesus, who was born to bring peace and guide us in God’s ways.

The Lord Is Coming to Save (Mass at Dawn)

Isaiah 62:11-12 speaks of God coming to rescue His people. He is not far away or silent. He comes with strength and blessing. His arrival brings hope and joy to those who have been waiting. It is a message meant for the whole world to hear.

God also gives His people new names in this passage. They are no longer seen as lost or forgotten. Instead, they are called holy and redeemed. God shows that they are wanted and cared for, and that He will not leave them behind.

Good News on the Mountain (Mass During the Day)

Isaiah 52:7-10 describes a messenger who brings good news to the people. The message is one of peace and salvation. The people are filled with joy because they know God is near and still watches over them.

The reading ends with a promise that God’s saving power will be seen by all nations. His care is not hidden or just for a few. He comes to bring comfort and freedom to everyone, no matter where they live.

Epiphany of Our Lord

Light for the Whole World

Isaiah 60:1-6 speaks of a time when God’s light shines on His people. Darkness may cover the earth, but His glory rises over them. Others will see this light and be drawn to it. Nations and leaders will come close, looking for hope and truth.

The people are told to look around and see the change. Sons and daughters will return home. Joy will fill their hearts. Gifts will come from far away—gold and frankincense—brought with praise. This reading reminds us that God’s light is meant to be shared. It reaches beyond one place and welcomes all.

Good Friday of the Lord’s Passion

The One Who Suffered for Us

Isaiah 52:13-53:12 tells about a servant who suffers, but is raised up by God. Many are shocked by his pain, but his suffering brings healing. He is rejected, bruised, and punished, even though he did nothing wrong. He stays silent and accepts it all.

This servant carries the sins of others. He gives his life like an offering. Though he dies, he is not forgotten. God lifts him up and gives him a place among the great. His pain brings peace to many. The Church sees this as pointing to Jesus and His Passion.

Easter Sunday – The Resurrection of the Lord

God Will Not Leave You

Isaiah 54:5-14 speaks of God as a faithful spouse who calls His people back with love. For a short time, they felt alone, but God promises to bring them back with care. His mercy is strong, and His promise of peace will not be taken away.

The people are told not to be afraid. God will protect them and make their foundation strong. Even if trouble comes, they will not fall. God says they are safe with Him. He will not forget them. His love will not fade.

Come to the Lord and Live

Isaiah 55:1-11 invites everyone to come to God and receive what they truly need. People are told to listen and eat what gives life, even if they have no money. God offers something better than food or drink—His word and His promise.

The reading reminds us that God’s ways are not like our ways. His thoughts are higher than ours. Just like rain makes the earth grow, God’s word always does what He wants. It never returns empty. Those who listen and follow will find joy and peace.

1st Sunday of Advent A

Walking in God’s Light

Isaiah 2:1-5 gives a vision of peace in the future. People from many nations will come to God’s mountain to learn His ways. They will want to follow His path and live by His teaching. God will guide them with justice.

In this future time, weapons will be turned into tools for farming. Nations will stop fighting and learn peace instead. People are called to walk in the light of the Lord. The message is clear: when we follow God, we choose peace over war and truth over fear.

2nd Sunday of Advent A

A Peaceful Kingdom

Isaiah 11:1-10 speaks of a new leader who will come from the family of Jesse. He will be wise, fair, and strong. He will love what is right and defend the poor. God’s Spirit will rest on him and help him rule with justice.

This leader will bring peace to the world. Even wild animals will live safely with each other. A child will lead them all. There will be no harm or fear in God’s holy place. Everyone will know the Lord. This vision gives hope for a world where peace and goodness are real.

3rd Sunday of Advent A – Gaudete Sunday

Joy and Healing Are Coming

Isaiah 35:1-6A, 10 shows a picture of joy and new life. The desert will bloom like a garden. Weak hands will grow strong. Fearful hearts will find courage. God is coming to save His people and bring healing to the land.

Those who could not see, hear, or walk will be healed. There will be singing and gladness. In Isaiah 35:10, the people God saves will return with joy. Sadness and worry will be gone. They will walk on a safe road, full of peace and joy.

4th Sunday of Advent A

A Sign of Hope

Isaiah 7:10-14 tells about a time when the king of Judah was afraid. God offered to give him a sign to show that He was with His people. But the king refused to ask for one, so God gave a sign anyway.

The sign was that a young woman would have a son, and his name would mean that God is with us. This promise gave hope to the people during a hard time. Christians believe this points to the birth of Jesus, who came to save and stay with us.

Palm Sunday A – Passion Sunday

Strength in Suffering

Isaiah 50:4-7 speaks about a servant who listens to God every day and speaks words that help others. Even when people insult him and hurt him, he does not fight back. He stays strong and trusts God.

The servant knows that God helps him, so he is not afraid or ashamed. He sets his face like stone, ready to do what is right. Christians believe this points to Jesus, who suffered but stayed faithful to God and gave His life for others.

Baptism of the Lord A

The Servant Who Brings Justice

Isaiah 42:1-4, 6-7 introduces a servant chosen by God. He is gentle and quiet but brings justice to the nations. He does not break the weak or crush the tired. He stays steady and does not give up until his work is done.

God calls this servant to be a light for others. He will help open the eyes of the blind and free people who are trapped in darkness. Catholics believe this servant points to Jesus, who brings healing, hope, and justice to the world.

2nd Sunday in Ordinary Time A

Called to Be a Light

Isaiah 49:3, 5-6 speaks about a servant chosen by God to bring His people back. Even before birth, this servant was formed and given a mission. His work is not only for Israel but for all nations.

God says the servant will be a light to the nations. He will help bring salvation to the ends of the earth. This shows that God’s plan is for everyone, not just one group. Catholics see this servant as Jesus, who came to save all people and lead them back to God.

3rd Sunday in Ordinary Time A

From Darkness to Joy

Isaiah 8:23–9:3 tells of a people who once lived in sadness and fear. They were in a dark time, but God promises that things will change. Light will shine where there was once gloom. The land that suffered will be honored again.

As the light grows, the people will rejoice. Their burdens will be lifted. God will bring peace, and the nation will grow strong again. Joy will return, like at harvest time or after a victory. This reading gives hope that God brings light after darkness.

5th Sunday in Ordinary Time A

Let Your Light Shine

Isaiah 58:7-10 teaches that true worship means helping others. God asks His people to share food with the hungry, shelter the homeless, and care for those in need. It is not enough to follow rules. God wants love in action.

When people care for others, light will shine in their lives. Healing will come quickly, and God will guide them. Their kindness will push away darkness. God listens when people help each other. This reading reminds us that faith must be shown through mercy and justice.

8th Sunday in Ordinary Time A

Never Forgotten

Isaiah 49:14-15 speaks to people who feel forgotten by God. They think He has turned away and left them behind. But God answers with strong love and care. He reminds them that He never forgets His people.

Just as a mother cannot forget her child, God says He will not forget those who belong to Him. His love is steady, even when times are hard. This reading gives comfort to anyone who feels alone or abandoned. God is always near.

15th Sunday in Ordinary Time A

God’s Word Does Its Work

Isaiah 55:10-11 compares God’s word to rain and snow that fall to the ground. Just as water helps plants grow and give food, God’s word helps bring life and change. It is sent for a reason and always does what God wants.

These verses remind us that God’s word is never wasted. It always has a purpose. It works quietly, like rain soaking the earth, but it brings real results. This gives us confidence when we listen to Scripture or share it with others. God is at work, even when we do not see it right away.

20th Sunday in Ordinary Time A

A House for All People

Isaiah 56:1, 6-7 speaks about doing what is right and staying close to God. God invites not just His own people, but also those from outside the nation who choose to follow Him and keep His ways. Everyone who honors His name and lives faithfully is welcome.

God says He will bring these people to His holy place. He will give them joy in worship, and their prayers and offerings will be accepted. His house will be a house of prayer for all nations. This shows that God’s love and mercy are open to all who seek Him.

21st Sunday in Ordinary Time A

A New Leader Chosen by God

Isaiah 22:19-23 tells about a change in leadership. A man who held power is removed from his place. God chooses someone new, a servant named Eliakim, to take his place and care for the people.

God gives Eliakim authority and trust. He will be like a strong peg, firmly placed, able to carry the weight of responsibility. He will lead with care, like a father to the people. This shows that true leadership comes from God and should be used to serve others.

25th Sunday in Ordinary Time A

Turn to the Lord While There Is Time

Isaiah 55:6-9 calls people to seek the Lord while He is near. They are told to turn away from sin and return to God, who is ready to forgive. Now is the time to change and follow His ways.

These verses also remind us that God’s thoughts and ways are very different from ours. His plans are higher and greater than we can fully understand. Even when we don’t see the full picture, we are called to trust Him and walk in His path.

27th Sunday in Ordinary Time A

The Vineyard That Failed

Isaiah 5:1-7 tells a story about a vineyard that was cared for with great effort. The owner did everything right—he cleared the land, planted good vines, and built a watchtower. But instead of good fruit, the vineyard gave only bad fruit.

This vineyard is a picture of God’s people. He gave them everything they needed, but they did not live as they should. Instead of justice, there was violence. Instead of right actions, there was suffering. Because of this, the vineyard would no longer be protected. This is a warning to stay faithful and live in a way that pleases God.

28th Sunday in Ordinary Time A

A Feast and a Promise

Isaiah 25:6-10a describes a feast prepared by God for all people. It is a sign of joy, unity, and blessing. At this feast, God removes sadness, takes away shame, and brings comfort to the nations.

In these verses, God promises to destroy death and wipe away every tear. People will say they waited for Him, and now they are saved. On that day, His care will be clear, and His people will rejoice. This reading reminds us that God’s plan brings peace and hope to everyone.

29th Sunday in Ordinary Time A

God Uses Whom He Chooses

Isaiah 45:1, 4-6 tells how God chooses Cyrus, a foreign king, to help carry out His plan. God gives him power, even though Cyrus does not know Him. This shows that God can work through anyone to guide history and help His people.

God says He does this for the sake of His people, Israel. He reminds them that He is the only God. There is no other. He gives strength and calls people by name. This reading shows that God is always in control, even through unexpected people and events.

1st Sunday of Advent B

Return to Us, O Lord

Isaiah 63:16B-17, 19B; 64:2-7 is a prayer asking God to come close again. The people feel lost and far from Him. They remember that God is their Father and Redeemer. They ask why He let them wander and why He seems hidden from them.

They speak of times when God showed His power, and they long for that again. The people admit their sins and failures. They feel worn out and unclean. Yet they still hope, because they know they belong to God. Like clay in a potter’s hand, they ask Him to shape them once more.

2nd Sunday of Advent B

Comfort for God’s People

Isaiah 40:1-5, 9-11 brings a message of comfort and hope. God tells His people that their suffering is ending. He is coming to lead them, and the way should be made ready. Valleys will be filled, hills made low, and rough paths made smooth. Everyone will see God’s glory.

The people are told to go up high and announce the good news. God is coming with power, but also with care. He will gather His people like a shepherd gathers sheep. He will carry the lambs and gently lead those who are weak. This shows God’s strength and kindness.

3rd Sunday of Advent B – Gaudete Sunday

Good News and Great Joy

Isaiah 61:1-2A, 10-11 speaks of someone sent by God to bring good news to the poor, heal the broken, and free those in chains. This person is filled with God’s spirit and brings hope to those in need. His message is one of comfort and justice.

The reading ends with joy and praise. The speaker is glad because God has saved and blessed him. He is dressed like a bridegroom or bride, ready for a celebration. Just like seeds grow into plants, God’s goodness will grow among all people. Everyone will see what God has done.

Palm Sunday B – Passion Sunday

Faithful Through Suffering

Isaiah 50:4-7 describes a servant who listens to God each day and speaks words that help others. Even when he is treated badly, he does not fight back. He accepts the pain and keeps going, staying close to the mission God gave him.

The servant trusts that God will help him. Because of this, he is not afraid or ashamed. He stands firm and does not turn away. This reading points to someone who suffers with courage and stays faithful no matter what happens. Catholics see this as a sign of Jesus and His passion.

Baptism of the Lord B

A Servant Who Brings Justice

Isaiah 42:1-4, 6-7 speaks about a servant chosen by God to bring justice to the world. He is quiet and gentle, not loud or forceful. He cares for the weak and does not give up until his work is done. He brings hope to people everywhere.

God says He has called this servant to be a light to the nations. He will open the eyes of the blind and free those who are trapped in darkness. This shows that the servant’s mission is to bring healing, justice, and freedom. Catholics believe this servant points to Jesus.

7th Sunday in Ordinary Time B

Forget the Past—God Is Doing Something New

Isaiah 43:18-19, 21-22, 24-25 tells the people to stop holding on to the past. God is doing something new, and it is already happening. He is making a way through the desert and bringing life where there was none.

The people have not always called on God or honored Him. Still, God chooses to forgive their sins. He wipes them away, not because of what they have done, but because of who He is. This reading shows that God brings new chances and mercy, even when people fall short.

23rd Sunday in Ordinary Time B

God Will Bring Healing and Joy

Isaiah 35:4-7A tells people not to be afraid. God is coming to save them. He will bring justice and help those who suffer. This message gives hope to those who feel weak, worried, or alone.

When God comes, blind eyes will see, deaf ears will hear, and those who cannot walk will jump for joy. Dry land will be filled with water. Life will grow where there was once nothing. This reading shows that when God acts, everything changes for the better.

24th Sunday in Ordinary Time B

The Servant Stays Strong

Isaiah 50:5-9A describes a servant who listens to God and obeys, even when it leads to suffering. People insult him and hurt him, but he does not fight back. He stays faithful and does not run away from his mission.

The servant is not afraid because he knows God helps him. He stands firm, knowing he will not be put to shame. He is ready to face his accusers, trusting that God is near and will defend him. This reading points to courage, patience, and trust in God during hard times.

29th Sunday in Ordinary Time B

The Servant’s Suffering Brings Life

Isaiah 53:10-11 tells how the servant suffers, but his pain is not wasted. His life is offered for others. Because of this, he will see the results of his work and live on. His mission will succeed.

Through his suffering, many people are made right with God. The servant knows pain, but he also understands the purpose behind it. He carries the weight of others’ wrongs and brings healing. Christians see this as a sign pointing to Jesus and His saving work.

3rd Sunday of Advent C – Gaudete Sunday

Sing to the Lord with Joy

Isaiah 12:2-3, 4, 5-6 is a song of trust and joy. It says that God gives strength and saves His people. Because of this, they can live without fear. They draw water from the well of salvation and find peace in Him.

The people are called to give thanks, tell others about God’s work, and sing with joy. In verses 4 to 6, the message is clear: God is great and close to His people. Everyone should rejoice and praise His name. This reading is a call to remember God’s help and to share that joy with the world.

5th Sunday of Lent C

God Makes a New Way

Isaiah 43:16-21 reminds the people that God once made a path through the sea to save them. But now He tells them not to focus only on the past. Something new is happening. God is making a road in the desert and rivers in dry places.

Even wild animals will honor God because He provides water in the wilderness. In verses 20 and 21, God says He is doing this for His people, the ones He formed to praise Him. This reading gives hope that God can bring new life, even in hard or dry times.

Palm Sunday of the Lord’s Passion C

The Servant Listens and Endures

Isaiah 50:4-7 describes a servant who listens to God each day and speaks words that help others. He does not resist when he is treated badly. Even when people insult and hurt him, he stays calm and faithful.

The servant does not turn away from his mission. He trusts that God is with him and will help him. Because of this, he is not ashamed or afraid. He stands firm, knowing he is doing what is right. This reading shows strength through trust in God.

Baptism of the Lord C

Prepare the Way for the Lord

Isaiah  40:1-5, 9-11 gives a message of comfort to God’s people. Their time of trouble is ending. God is coming, and the people must get ready. The land will be made smooth—valleys lifted, hills lowered—so that all people can see God’s glory.

In verses 9-11, the people are told to share this good news. God comes with strength, but also with care. He will lead His people like a shepherd, gathering the weak and guiding them gently. This reading gives hope and reminds us that God brings both power and kindness.

2nd Sunday in Ordinary Time C

A New Name and a New Joy

Isaiah 62:1-5 speaks about God’s promise to stay with His people. He will not rest until they shine like a bright light. Everyone will see that they are special and chosen. God will give them a new name that shows they belong to Him.

In these verses, God says His people will no longer be called forgotten or abandoned. Instead, they will be called His delight. Just like a groom is happy with his bride, God will rejoice in His people. This reading shows that God’s care brings honor and joy.

5th Sunday in Ordinary Time C

Isaiah Says Yes to God

Isaiah 6:1-2A, 3-8 describes a vision where Isaiah sees the Lord on a throne. Angels are around Him, calling out holy words. The place shakes, and smoke fills the space. Isaiah feels unworthy and afraid because he knows he is a sinner.

One of the angels touches Isaiah’s lips with a burning coal, saying his sin is taken away. Then Isaiah hears God asking, “Whom shall I send?” Isaiah answers, “Here I am. Send me.” This reading shows Isaiah’s call to serve and his willing response to God.

14th Sunday in Ordinary Time C

Joy and Comfort from the Lord

Isaiah 66:10-14C speaks of Jerusalem like a mother who brings comfort and care. The people are told to rejoice with her. They will find peace, safety, and strength, like children held in their mother’s arms.

God promises to care for His people in this way. He will bring healing and joy. In verse 14c, it says that those who trust in Him will feel renewed. This reading gives hope that God will comfort and care for His people like a loving parent.

21st Sunday in Ordinary Time C

All People Are Welcome

Isaiah 66:18-21 speaks of a time when God will gather people from all nations. Everyone will see His glory. He will send messengers to distant lands to share what He has done, even to places that have never heard of Him before.

People from many nations will come and worship together. God will accept offerings from them just as He does from His own people. Some of them will even become priests and servants in His house. This reading shows that God’s love and call are for all people, not just a few.

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Isaiah is also used for weekdays and feasts:

• Monday of the 1st Week of Advent – Isaiah 2:1-5 Vision of Peaceful Zion
• Tuesday of the 1st Week of Advent – Isaiah 11:1-10 Hope for Peaceful Kingdom
• Wednesday of the 1st Week of Advent – Isaiah 25:6-10a The Lord’s Mountain Feast
• Thursday of the 1st Week of Advent – Isaiah 26:1-6 Song of Judah’s Salvation
• Friday of the 1st Week of Advent – Isaiah 29:17-24 The Lord’s Promise of Renewal
• Saturday of the 1st Week of Advent – Isaiah 30:19-21, 23-26 God’s Gracious Promise
• Monday of the 2nd Week of Advent – Isaiah 35:1-10 Desert’s Transformation and Joy
• Tuesday of the 2nd Week of Advent – Isaiah 40:1-11 Comfort for God’s People
• Wednesday of the 2nd Week of Advent – Isaiah 40:25-31 Isaiah’s Vision of Renewal
• Thursday of the 2nd Week of Advent – Isaiah 41:13-20 Isaiah’s Vision of Renewal
• Friday of the 2nd Week of Advent – Isaiah 48:17-19 The Lord’s Guidance and Promise
• Wednesday of the 3rd Week of Advent – Isaiah 45:6C-8, 18, 21C-25 The One True God
• Thursday of the 3rd Week of Advent – Isaiah 54:1-10 The Promise of Unfailing Love
• Friday of the 3rd Week of Advent – Isaiah 56:1-3a, 6-8 A House of Prayer for All Peoples
• Advent Weekday on December 20 – Isaiah 7:10-14 The Sign of Emmanuel
• Friday after Ash Wednesday – Isaiah 58:1-9a True Fasting and Its Rewards
• Saturday after Ash Wednesday – Isaiah 58:9b-14 Promise for Righteous Acts
• Tuesday of the 1st Week of Lent – Isaiah 55:10-11 The Power of God’s Word
• Tuesday of the 2nd Week of Lent – Isaiah 1:10, 16-20 Call to Righteousness
• Monday of the 4th Week of Lent – Isaiah 65:17-21 A New Creation Promised
• Monday of Holy Week – Isaiah 42:1-7 The Servant of Justice
• Tuesday of Holy Week – Isaiah 49:1-6 A Global Mission
• Wednesday of Holy Week – Isaiah 50:4-9a Unwavering in the Face of Trials
• The Most Sacred Heart of Jesus B – Isaiah 12:2-3, 4, 5-6 Joy from the Springs of Salvation
• Saturday of the 14th Week in Ordinary Time II – Isaiah 6:1-8 Isaiah’s Vision of the Lord
• Monday of the 15th Week in Ordinary Time II – Isaiah 1:10-17 A Call for Justice
• Tuesday of the 15th Week in Ordinary Time II – Isaiah 7:1-9 God’s Assurance to Ahaz
• Wednesday of the 15th Week in Ordinary Time II – Isaiah 10:5-7, 13b-16 God’s Judgment on Assyria
• Thursday of the 15th Week in Ordinary Time II – Isaiah 26:7-9, 12, 16-19 The Way of the Just
• Friday of the 15th Week in Ordinary Time II – Isaiah 38:1-6, 21-22, 7-8 Hezekiah’s Healing
• Friday of the 19th Week in Ordinary Time II – Isaiah 12:2-6 God is My Savior
• Wednesday of the 29th Week in Ordinary Time II – Isaiah 12:2-6 Joy in God’s Salvation
• Nativity of Saint John the Baptist – Isaiah 49:1-6 The Call and Mission of the Lord’s Servant

The Bible

If you want to understand the Bible better, there are good ways to start. The Book of Isaiah is just one part of a much bigger story. The whole Bible helps us know God and live as His people.

To learn more, visit this page about the Bible. It has simple ideas, prayers, and tips for reading the Bible. It is made for young Catholics, but anyone can use it.

Who wrote the Book of Isaiah?

The first part was written by the prophet Isaiah. Later parts may have been written by his followers. The whole book shares Isaiah’s message.

When was the Book of Isaiah written?

Isaiah lived around 700 years before Jesus. The book was written over many years during and after his life.

What is the main message of Isaiah?

Isaiah warns people to turn back to God. He also gives hope by speaking about a Savior who will come.

Why is the Book of Isaiah important to Catholics?

Isaiah points to Jesus. His words are read at Mass, especially during Advent and Lent. He helps us prepare for Jesus.

What are the servant songs?

These are poems in Isaiah that speak about a servant who suffers for others. The Church sees Jesus in these songs.

Where can I read Isaiah in the Bible?

You can find the Book of Isaiah in the Old Testament. It has 66 chapters.

The Book of Isaiah is a big part of the Bible. It is in the Old Testament. Isaiah was a prophet who lived many years before Jesus. He spoke to the people of Judah during hard times. He warned them to stop sinning and to turn back to God.

Isaiah also gave hope. He said that God would not forget His people. He spoke about peace and a new beginning. He said a Savior would come, someone who would bring light and healing. Catholics believe this Savior is Jesus.

The book has 66 chapters. The first part talks about judgment and warning. The middle part brings comfort during exile. The last part speaks of a new future. The Church reads from Isaiah during Advent, Lent, and many other times. His words help us think, pray, and wait for Jesus.

Isaiah helps us trust God, even when life is hard. He reminds us that God always keeps His promises.

If you have never read the Book of Isaiah, now is a good time to start. Pick one chapter and read it slowly. Think about what it says about God, His people, and the promise of Jesus.

After you read, share what stood out to you. Did something speak to your life today? Leave a comment and let others know what you found. Your words might help someone else.