ACT OF CONTRITION

O my God, I am heartily sorry for having offended you, and I detest all my sins, because I dread the loss of heaven and the pains of hell; 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 confess my sins, to do penance, and to amend my life. Amen.

OR:

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.