What Does the Bible Say About Repentance?

"For the Chief Musician. A Psalm by David, when Nathan the prophet came to him, after he had gone in to Bathsheba. Have mercy on me, God, according to your loving kindness. According to the multitude of your tender mercies, blot out my transgressions. Wash me thoroughly from my iniquity. Cleanse me from my sin. For I know my transgressions. My sin is constantly before me. Against you, and you only, I have sinned, and done that which is evil in your sight, so you may be proved right when you speak, and justified when you judge. Behold, I was born in iniquity. My mother conceived me in sin. Behold, you desire truth in the inward parts. You teach me wisdom in the inmost place. Purify me with hyssop, and I will be clean. Wash me, and I will be whiter than snow. Let me hear joy and gladness, that the bones which you have broken may rejoice. Hide your face from my sins, and blot out all of my iniquities. Create in me a clean heart, O God. Renew a right spirit within me. Don’t throw me from your presence, and don’t take your Holy Spirit from me. Restore to me the joy of your salvation. Uphold me with a willing spirit. Then I will teach transgressors your ways. Sinners will be converted to you. Deliver me from the guilt of bloodshed, O God, the God of my salvation. My tongue will sing aloud of your righteousness. Lord, open my lips. My mouth will declare your praise."

This passage is the starting point because it gives the reading its main biblical weight: The prophets, John the Baptist, Jesus, and the apostles call for changed allegiance that bears fruit.

"Now all the tax collectors and sinners were coming close to him to hear him. The Pharisees and the scribes murmured, saying, “This man welcomes sinners, and eats with them.” He told them this parable: “Which of you men, if you had one hundred sheep and lost one of them, wouldn’t leave the ninety-nine in the wilderness and go after the one that was lost, until he found it? When he has found it, he carries it on his shoulders, rejoicing. When he comes home, he calls together his friends and his neighbors, saying to them, ‘Rejoice with me, for I have found my sheep which was lost!’ I tell you that even so there will be more joy in heaven over one sinner who repents, than over ninety-nine righteous people who need no repentance. “Or what woman, if she had ten drachma coins, if she lost one drachma coin, wouldn’t light a lamp, sweep the house, and seek diligently until she found it? When she has found it, she calls together her friends and neighbors, saying, ‘Rejoice with me, for I have found the drachma which I had lost!’ Even so, I tell you, there is joy in the presence of the angels of God over one sinner repenting.” He said, “A certain man had two sons. The younger of them said to his father, ‘Father, give me my share of your property.’ So he divided his livelihood between them."

The Gospel witness matters here because Jesus does not leave repentance as an idea; He embodies and commands the kingdom shape of it.

"Now when the day of Pentecost had come, they were all with one accord in one place. Suddenly there came from the sky a sound like the rushing of a mighty wind, and it filled all the house where they were sitting. Tongues like fire appeared and were distributed to them, and one sat on each of them. They were all filled with the Holy Spirit and began to speak with other languages, as the Spirit gave them the ability to speak. Now there were dwelling in Jerusalem Jews, devout men, from every nation under the sky. When this sound was heard, the multitude came together and were bewildered, because everyone heard them speaking in his own language. They were all amazed and marveled, saying to one another, “Behold, aren’t all these who speak Galileans? How do we hear, everyone in our own native language? Parthians, Medes, Elamites, and people from Mesopotamia, Judea, Cappadocia, Pontus, Asia, Phrygia, Pamphylia, Egypt, the parts of Libya around Cyrene, visitors from Rome, both Jews and proselytes, Cretans and Arabians—we hear them speaking in our languages the mighty works of God!” They were all amazed and were perplexed, saying to one another, “What does this mean?” Others, mocking, said, “They are filled with new wine.”"

This passage broadens the topic by showing how repentance belongs inside God's larger story rather than a single isolated concern.

"Having therefore these promises, beloved, let’s cleanse ourselves from all defilement of flesh and spirit, perfecting holiness in the fear of God. Open your hearts to us. We wronged no one. We corrupted no one. We took advantage of no one. I say this not to condemn you, for I have said before that you are in our hearts to die together and live together. Great is my boldness of speech toward you. Great is my boasting on your behalf. I am filled with comfort. I overflow with joy in all our affliction. For even when we had come into Macedonia, our flesh had no relief, but we were afflicted on every side. Fightings were outside. Fear was inside. Nevertheless, he who comforts the lowly, God, comforted us by the coming of Titus, and not by his coming only, but also by the comfort with which he was comforted in you while he told us of your longing, your mourning, and your zeal for me, so that I rejoiced still more. For though I grieved you with my letter, I do not regret it, though I did regret it. For I see that my letter made you grieve, though just for a while. I now rejoice, not that you were grieved, but that you were grieved to repentance. For you were grieved in a godly way, that you might suffer loss by us in nothing. For godly sorrow produces repentance leading to salvation, which brings no regret. But the sorrow of the world produces death."

The apostolic letters press repentance into the life of the church, where doctrine becomes worship, speech, habits, and love.

"That which was from the beginning, that which we have heard, that which we have seen with our eyes, that which we saw, and our hands touched, concerning the Word of life (and the life was revealed, and we have seen, and testify, and declare to you the life, the eternal life, which was with the Father, and was revealed to us); that which we have seen and heard we declare to you, that you also may have fellowship with us. Yes, and our fellowship is with the Father and with his Son, Jesus Christ. And we write these things to you, that our joy may be fulfilled. This is the message which we have heard from him and announce to you, that God is light, and in him is no darkness at all. If we say that we have fellowship with him and walk in the darkness, we lie and don’t tell the truth. But if we walk in the light as he is in the light, we have fellowship with one another, and the blood of Jesus Christ his Son cleanses us from all sin. If we say that we have no sin, we deceive ourselves, and the truth is not in us. If we confess our sins, he is faithful and righteous to forgive us the sins and to cleanse us from all unrighteousness. If we say that we haven’t sinned, we make him a liar, and his word is not in us."

This passage broadens the topic by showing how repentance belongs inside God's larger story rather than a single isolated concern.