10-Minute Catholic Bible Study

Sunday, January 24, 2027 · Year B

Third Sunday in Ordinary Time

Repent, and believe in the Gospel

The Calling of the Apostles Peter and Andrew, by Duccio
The Calling of the Apostles Peter and Andrew, Duccio, 1308-1311

Jonah preaches in Nineveh, and the whole city turns from evil. In Galilee Jesus proclaims, “The kingdom of God is at hand. Repent, and believe in the gospel,” and calls four fishermen, who leave their nets and follow Him.

Mass Readings

  • First Reading Jonah 3:1-5, 10
  • Responsorial Psalm Psalm 25:4-5, 6-7, 8-9
  • Second Reading 1 Corinthians 7:29-31
  • Gospel Mark 1:14-20

Open the Mass Readings on USCCB.org →

First Reading Jonah 3:1-5, 10

Jonah walks through Nineveh announcing its destruction. The people believe God, proclaim a fast and turn from evil, and God relents.

Psalm Psalm 25

Teach me Your ways, O Lord. Remember Your mercy, and guide the humble to justice.

Second Reading 1 Corinthians 7:29-31

Time is running out. The world in its present form is passing away, so live with your hearts free of what does not last.

Gospel Mark 1:14-20

Jesus proclaims that the kingdom of God is at hand. He calls Simon, Andrew, James and John, and they leave everything to follow Him.

Step Into the Story

Nineveh, on the Tigris, was capital of Assyria, the empire that destroyed the northern kingdom of Israel in 722 B.C. and deported its people. Assyrian kings decorated their palaces with reliefs of flayed prisoners. When God sends Jonah there, Jonah sails the other way. Sent a second time, he preaches one sentence, and the whole city, king included, puts on sackcloth. Jonah is furious. In Galilee, likely around 28 A.D., Herod Antipas has just arrested John the Baptist.

  1. 722 B.C.Assyria destroys Israel
  2. 4 B.C.Antipas rules Galilee
  3. c. 20 A.D.Antipas founds Tiberias
  4. c. 28 A.D.Antipas arrests John
  5. This week’s scene: c. 28 A.D.Jesus calls the fishermen

Walk the shore of the Sea of Galilee, a freshwater lake about thirteen miles long, set in a bowl of hills nearly 700 feet below the sea. Hear the water slap against the boats drawn up on the shingle. Smell fish and wet nets. This is a working lake: down the shore at Magdala, whose Greek name, Taricheae, means fish salting, the catch is packed for market.

Watch two brothers, Simon and Andrew, casting a net into the shallows. Farther on, James and John sit in their father Zebedee’s boat with the hired men, mending nets. A man from Nazareth is walking along the beach toward them. Stand at the water’s edge with your sandals wet, and wait for Him to call.

Encounter the Lord

Stand on the shore of the Sea of Galilee. Simon and Andrew are casting their nets, as they do every day. A man walks by and says, “Come after me, and I will make you fishers of men.” Mark says they left their nets at once.

Repentance is not only feeling sorry. It is turning your whole life toward God. The Ninevites did it with fasting and sackcloth. The fishermen did it by walking away from their boats. Paul reminds us why it is urgent: the world as we know it is passing away. Jesus is not asking you to despise your work or your family, but to let Him come first, and to trust that following Him is the way to the happiness you are looking for.

This week, name one attachment that slows you down in following Christ. Make a concrete act of letting go, and if it has been a while, go to Confession.

Know Your Faith

Catechism
YOUCAT
  • 7·why God had to reveal Himself
  • 92·why Jesus called apostles
  • 229·what prepares a person for repentance

The Call to Conversion

Jesus calls to conversion as an essential part of proclaiming the kingdom: “Repent, and believe in the gospel” (CCC 1427). Baptism is the principal place of the first conversion.

Ongoing Conversion

Christ’s call to conversion continues in the lives of Christians. This second conversion is an uninterrupted task for the whole Church (CCC 1428). Interior repentance is a radical reorientation of our whole life, a return to God with all our heart (CCC 1431).

God Reveals His Plan

In His goodness God revealed Himself and made known the mystery of His will, so that we might have access to the Father through Christ and share in the divine nature (CCC 51). He reveals Himself gradually, by deeds and words (CCC 53).

Conversion and Society

Conversion of heart is necessary for changing society. Institutions cannot be made just without inner conversion, and charity is the greatest social commandment (CCC 1886-1889).

Key Takeaways

  • Scripture
  • Doctrine
  • Sacraments
  • Christian Life
  1. Christian Life: Repentance means turning one’s whole life back to God, not only feeling sorry.
  2. Christian Life: Conversion is a lifelong task for every Christian, not a one-time event.
  3. Christian Life: Following Jesus means giving Him first place, even above work and family.
  4. Doctrine: God’s mercy is offered to everyone who repents, even to people we consider enemies.

Test Your Knowledge

True or false? Tap your answer.

  1. Nineveh was the capital of Assyria, the empire that conquered the northern kingdom of Israel.

    True.

  2. The Book of Jonah teaches that God’s mercy is limited to Israel.

    False: God showed mercy to Nineveh when it repented.

  3. The Catechism teaches that conversion is needed only once, at Baptism.

    False: a second conversion is an uninterrupted task for the whole Church, CCC 1428.

  4. Interior repentance means a radical reorientation of one’s whole life toward God.

    True.

  5. James and John left their father Zebedee in the boat with the hired men.

    True.

  6. Jesus’ call to repent is an essential part of His proclamation of the kingdom.

    True.

  7. Paul’s teaching that the world is passing away means Christians should despise their families and work.

    False: it means living with hearts free from attachment to what does not last.

  8. Changing unjust structures in society does not require personal conversion.

    False: inner conversion of heart is necessary for lasting social change, CCC 1888.

  9. Baptism is the principal place for the first and fundamental conversion.

    True.

  10. Conversion is moved by God’s grace, not only by human effort.

    True.

Answers: 1 T · 2 F (God showed mercy to Nineveh when it repented) · 3 F (a second conversion is an uninterrupted task for the whole Church, CCC 1428) · 4 T · 5 T · 6 T · 7 F (it means living with hearts free from attachment to what does not last) · 8 F (inner conversion of heart is necessary for lasting social change, CCC 1888) · 9 T · 10 T

Journal Prompts

  1. What “nets” am I holding onto that keep me from following Christ more freely?

  2. Is there someone I consider beyond God’s mercy? How might God see them?

  3. If I truly believed that the world in its present form is passing away, what would I change?

  4. When was my last real act of conversion? What is God asking me to turn from now?

Talk to God

Lord Jesus, You called Simon and Andrew from their nets, and they followed You at once. Call me too. Free me from what holds me back, turn my heart toward You, and make me a fisher of souls. Amen.