Act of Contrition

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.