Act of Contrition: Traditional version

O my God, I am heartily sorry for having offended Thee, 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 Thee, my God, who art all good and deserving of all my love. I firmly resolve with the help of thy grace to confess my sins, to do penance, and to amend my life. Amen.