The Act of Contrition

For many Catholics the Act of Contrition is the prayer they learned at seven and half remember at thirty. It is also the prayer that causes the most nervousness in the confessional, because it comes at the moment you most want to get the words right.

This post gives you the full text, explains what each line actually says, and shows exactly where it fits in confession. It also covers the shortest approved form, for the day your memory goes blank.

What is the Act of Contrition?

The Act of Contrition is a short prayer in which a Christian tells God they are sorry for their sins and resolves, with his help, not to sin again. It puts into words the inner act the Church calls contrition, which is the first and most important thing a penitent brings to confession.

The Catechism defines contrition as "sorrow of the soul and detestation for the sin committed, together with the resolution not to sin again," and says that "among the penitent's acts contrition occupies first place" (CCC 1451). The prayer is not a password. It is the spoken form of something that has to be real on the inside.

There is no single mandatory text. The Order of Penance offers several forms, and different countries and families have their own traditional wording. Any of them is valid when it is prayed sincerely. The priest will not test you on the exact wording, and he will not ask which version you learned as a child.

What are the words of the Act of Contrition?

The traditional form most English-speaking Catholics learn is below. It is one of the forms given by the Church in the Order of Penance and published by the United States bishops. Many parishes print it on a card inside the confessional.

O my God, I am heartily sorry for having offended you, and I detest all my sins because of your just punishments, but most of all because they offend you, my God, who are all good and deserving of all my love. I firmly resolve, with the help of your grace, to sin no more and to avoid the near occasions of sin. Amen.

The Order of Penance also allows a much shorter prayer, taken from the words of the tax collector in the Gospel and the ancient Jesus Prayer:

Lord Jesus, Son of God, have mercy on me, a sinner.

Both texts, along with a longer contemporary form, appear on the United States bishops' page for the Act of Contrition, which cites the Order of Penance. The short form echoes the prayer Jesus praises in the parable of the Pharisee and the tax collector, "God, be merciful to me a sinner" (Luke 18:13).

What does each line of the prayer mean?

The prayer moves in three parts: sorrow for offending God, the reasons for that sorrow, and a firm resolution for the future. Each part matches what the Church teaches about contrition, so knowing the meaning helps you pray it rather than recite it.

"I am heartily sorry for having offended you." Sin is first a personal offence against God, not only a broken rule. The prayer begins by naming the relationship that sin damages.

"I detest all my sins because of your just punishments." This line admits an honest, lower motive: fear of the consequences of sin. The Church does not dismiss that motive. It calls it imperfect contrition and treats it as a real starting point.

"But most of all because they offend you, my God, who are all good." Here the prayer reaches for the higher motive: sorrow because sin wounds someone who is good and worth loving above everything. This is what the Church calls perfect contrition.

"I firmly resolve, with the help of your grace, to sin no more." Sorrow without a resolution is not contrition. The resolution does not promise that you will never fall again. It is a sincere intention, supported by grace rather than willpower alone.

"And to avoid the near occasions of sin." This is the most practical line in the prayer. A near occasion is a person, place or situation that reliably leads you into a particular sin. Resolving to avoid it is often where real change begins.

Read as a whole, the prayer is less about feeling bad and more about turning around. It names the offence, admits mixed motives, asks for grace and commits to one concrete change. That is also why it rests on a promise rather than on your own effort. Scripture puts it plainly: "If we confess our sins, he is faithful and just, and will forgive our sins and cleanse us from all unrighteousness" (1 John 1:9). The Act of Contrition is how you take God at his word.

When do you say the Act of Contrition in confession?

You pray it near the end, after you have confessed your sins and the priest has given you a penance and any advice. He will usually invite you to pray it. Then he pronounces the words of absolution.

The Catechism lists the usual order of the rite: a greeting and blessing, a reading from the word of God, "the confession, which acknowledges sins and makes them known to the priest; the imposition and acceptance of a penance; the priest's absolution; a prayer of thanksgiving and praise and dismissal with the blessing of the priest" (CCC 1480). The Act of Contrition sits between accepting the penance and receiving absolution.

In practice, a confession sounds like this. You begin, "Bless me, Father, for I have sinned. It has been two months since my last confession," and name your sins. The priest may say a few words and give a penance. He then says something like, "Now pray an Act of Contrition." You pray it aloud, he gives absolution, and you leave to complete your penance. If you are nervous about the rest of the rite, our guide to going to confession after years away walks through every step.

What is the difference between perfect and imperfect contrition?

Perfect contrition is sorrow for sin because it offends God, whom you love above all things. Imperfect contrition is sorrow that begins from fear of punishment or disgust at sin itself. Both are gifts of grace, and imperfect contrition is enough for the sacrament of confession.

The Catechism explains perfect contrition in CCC 1452: it "remits venial sins; it also obtains forgiveness of mortal sins if it includes the firm resolution to have recourse to sacramental confession as soon as possible."

Of imperfect contrition it says that it "is also a gift of God, a prompting of the Holy Spirit," and that while it cannot by itself obtain forgiveness of grave sins, "it disposes one to obtain forgiveness in the sacrament of Penance" (CCC 1453). The traditional prayer contains both motives on purpose. It meets you where you are and points you further.

Can you pray the Act of Contrition outside confession?

Yes, and the Church encourages it. Many Catholics pray it every night before sleep, often at the end of the daily examen. It is also a natural prayer to say as soon as you realise you have sinned, rather than waiting until the next confession.

Praying it daily does not replace the sacrament. If you are aware of a mortal sin, you still need to confess it before receiving Communion; our explainer on what mortal sin is sets out the conditions. But a sincere act of perfect contrition, joined to the intention to confess, is a real return to God in the meantime, and the Church has always taught Catholics to make one when confession is not immediately available, especially in danger of death.

There is a quieter benefit too. Someone who prays the Act of Contrition every night rarely arrives at confession with a long, confused list. They have already been naming their faults to God one day at a time, and preparing with an examination of conscience becomes simple.

What if you forget the words in the confessional?

Say so. Priests hear "I don't remember the Act of Contrition" regularly and will either read it with you or hand you a card. You can also simply tell God, in your own words, that you are sorry and will try not to sin again.

What matters is the sorrow and the resolution, not a perfect recitation. The short form, "Lord Jesus, Son of God, have mercy on me, a sinner," is an approved option in the rite and takes three seconds to learn. If the longer prayer makes you anxious, use the short one. It is not a lesser choice.

If you want to learn the traditional form, a simple method works: read it once each evening for a week, then pray it from memory with the text in front of you as a check. By the second week it will be there when you need it. Many people also keep a photo of the prayer on their phone for the first few confessions.