Act of Contrition in english
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 avoid the near occasions of sin. Amen.
In Latin
DEUS meus, ex toto corde poenitet me omnium meorum peccatorum, eaque detestor, quia peccando, non solum poenas a Te iuste statutas promeritus sum, sed praesertim quia offendi Te, summum bonum, ac dignum qui super omnia diligaris. Ideo firmiter propono, adiuvante gratia Tua, de cetero me non peccaturum peccandique occasiones proximas fugiturum. Amen.
AN ACT OF CONTRITION VERSION 2
Forgive me my sins, O Lord, forgive me my sins;
the sins of my youth, the sins of my age, the sins of my soul,
the sins of my body; my idle sins, my serious voluntary sins;
the sins I know, the sins I do not know; the sins I have concealed
for so long, and which are now hidden from my memory.
I am truly sorry for every sin, mortal and venial,
for all the sins of my childhood up to the present hour.
I know my sins have wounded Thy Tender Heart,
O My Savior, let me be freed from the bonds of evil through
the most bitter Passion of My Redeemer. Amen.
O My Jesus, forget and forgive what I have been. Amen.
Prayer of Manasseh
O Lord, Almighty God of our fathers, Abraham, Isaac, and Jacob, and of their righteous seed; who hast made heaven and earth, with all the ornament thereof; who hast bound the sea by the word of thy commandment; who hast shut up the deep, and sealed it by thy terrible and glorious name; whom all men fear, and tremble before thy power; for the majesty of thy glory cannot be borne, and thine angry threatening toward sinners is importable: but thy merciful promise is unmeasurable and unsearchable; for thou art the most high Lord, of great compassion, longsuffering, very merciful, and repentest of the evils of men. Thou, O Lord, according to thy great goodness hast promised repentance and forgiveness to them that have sinned against thee: and of thine infinite mercies hast appointed repentance unto sinners, that they may be saved. Thou therefore, O Lord, that art the God of the just, hast not appointed repentance to the just, as to Abraham, and Isaac, and Jacob, which have not sinned against thee; but thou hast appointed repentance unto me that am a sinner: for I have sinned above the number of the sands of the sea. My transgressions, O Lord, are multiplied: my transgressions are multiplied, and I am not worthy to behold and see the height of heaven for the multitude of mine iniquities. I am bowed down with many iron bands, that I cannot life up mine head, neither have any release: for I have provoked thy wrath, and done evil before thee: I did not thy will, neither kept I thy commandments: I have set up abominations, and have multiplied offences. Now therefore I bow the knee of mine heart, beseeching thee of grace. I have sinned, O Lord, I have sinned, and I acknowledge mine iniquities: wherefore, I humbly beseech thee, forgive me, O Lord, forgive me, and destroy me not with mine iniquites. Be not angry with me for ever, by reserving evil for me; neither condemn me to the lower parts of the earth. For thou art the God, even the God of them that repent; and in me thou wilt shew all thy goodness: for thou wilt save me, that am unworthy, according to thy great mercy. Therefore I will praise thee for ever all the days of my life: for all the powers of the heavens do praise thee, and thine is the glory for ever and ever. Amen.
