The sacrament of Penance (commonly called confession or Reconciliation) is the method given by Christ to the Catholic Church by which individual men and women may confess sins committed after baptism and have them absolved by a priest.
O my God, I am heartily sorry for having offended Thee, and I detest all my sins because of thy just punishments, but most of all because they offend Thee, my God, who art all good and deserving of all my love.
I firmly resolve with the help of Thy grace to sin no more and to avoid the near occasion of sin. Amen.
My God, I am sorry for my sins with all my heart. In choosing to do wrong and failing to do good, I have sinned against you whom I should love above all things.
I firmly intend, with your help, to do penance, to sin no more, and to avoid whatever leads me to sin.
Our Savior Jesus Christ suffered and died for us. In his name, my God, have mercy.
Lord Jesus, you opened the eyes of the blind, healed the sick, forgave the sinful woman, and after Peter's denial confirmed him in your love.
Listen to my prayer: forgive all my sins, renew your love in my heart, help me to live in perfect unity with my fellow Christians that I may proclaim your saving power to all the world.
Lord Jesus, Son of God, have mercy on me, a sinner.