Prayer of St. John Damascene

God, my God, unextinguishable and invisible fire, You make Your angels flaming fire.

Out of Your inexpressible love You have given me Your divine Flesh as food, and through this communion of Your immaculate Body and precious Blood You receive me as a partaker of Your divinity.

Permeate all my body and soul, all my bones and sinews.

Consume my sins in fire.

Enlighten my soul and illumine my mind.

Sanctify my body and make Your abode in me together with Your blessed Father and all-holy Spirit, that I may always abide in You, through the intercession of Your immaculate Mother and all Your saints.

Amen

From Saint John Damascene's Writings

Mary opened to us the unspeakable abyss of God's love for us. Through her the old enmity against the Creator is destroyed. Through her our reconciliation with him is strengthened, peace and grace are given to us, men and women are the companions of angels, and we, who were in dishonor, are made the children of God. From her we have plucked the fruit of life. From her we have received the seed of immortality. She is the channel of all our goods. In her God was man and man was God. What more marvelous or blessed? I approach the subject in fear and trembling.

With Mary, the prophetess, O youthful souls, let us sound our musical instruments, mortifying our members on earth, for this spiritual music. Let our souls rejoice in the Ark of God; the walls of Jericho will yield, I mean the fortresses of the enemy. Let us dance in spirit with David; the Ark of God is at rest. With Gabriel, the great archangel, let us exclaim, "Hail, full of grace, the Lord is with you." Hail, inexhaustible ocean of grace. Hail, sole refuge in grief. Hail, cure of hearts. Hail, you through whom death is expelled and life is installed.