St. Ambrose's Prayer Before the Eucharist

O loving Lord Jesus Christ, I a sinner, presuming not on my own merits, but trusting in Thy mercy and goodness, with fear and trembling approach the table of Thy most sacred banquet. For I have defiled both my heart and body with many sins, and have not kept a strict guard over my mind and my tongue. Wherefore, O gracious God, O awful Majesty, I, a wretched creature, entangled in difficulties, have recourse to Thee the fount of mercy; to Thee do I fly that I may be healed, and take refuge under Thy protection, and I ardently desire to have Him as my Saviour, whom I am unable to face as my Judge.

To Thee, O Lord, I show my wounds, to Thee I lay bare my shame. I know that my sins are many and great, on account of which I am filled with fear. But I trust in Thy mercy, of which there is no end. Look down upon me, therefore, with the eyes of Thy mercy, O Lord Jesus Christ, eternal King, God and Man, crucified for men. Hearken unto me, for my hope is in Thee; have mercy on me, who am full of misery and sin, Thou who wilt never cease to let flow the fountain of mercy.

Hail, Victim of salvation, offered for me and for all mankind on the gibbet of the cross! Hail, noble and precious Blood, flowing from the wounds of my crucified Lord Jesus Christ and washing away all the sins of the whole world! Remember, O Lord, Thy creature, whom Thou hast redeemed with Thy Most Precious Blood.

I am grieved because I have sinned, I desire to make amends for what I have done. Take away from me therefore, O most merciful Father, all my iniquities and sins, that, being purified both in soul and body, I may worthily partake of the Holy of Holies. Grant that my reception of Thy Body and Blood, which I purpose, unworthy though I am, may bring to me pardon for my sins, the perfect cleansing of my faults, the expulsion of all evil thoughts, and the renewal of pure feelings, the health and efficacy of good works, pleasing unto Thee, and a most strong protection both in soul and body against the snares of my enemies.

Amen.