Irmos: Becoming vanquishers of the tyrant and the flame by Thy grace, taking exceeding care to keep Thy commandments, the children cried out: Bless the Lord, all ye works of the Lord!
Grace was poured forth into thine ears, O father Leo, initiate of the divine mysteries; wherefore, God anointed thee hierarch for the people who cried out: Bless the Lord, all ye works of the Lord!
Theotokion: He Who bringeth about all blessings by His will, O most immaculate one, desiring to make His abode in thy womb, appeared in the flesh and hath deified me, who before became corrupt through the evil counsel of the serpent.
Thou dost admonish those who lived in thy fold, O venerable one, manifestly appearing to them and instructing them in dreams; and thou dost miraculously help all who pray to thee, and deliverest them from evil tribulations.
Irmos: The King of heaven, Whom the hosts of angels hymn, praise and exalt ye supremely for all ages!
Thou wast well-pleasing to the all-eternal King, O most blessed father Leo, and didst stand before the earthly king bearing burning embers, astonishing his mind with exceeding glorious miracles.
Theotokion: Time draweth to a close; love faileth; the evil one gaineth the victory. Who can help us if thou wilt not protect us with the Cross of thy Son, O wondrous Virgin Mother?
Pray for us, O venerable one, and forget not those who have recourse unto thee, who find themselves amid sorrows and griefs, granting them comfort through thy healing shrine.
Planted like a fruitful olive-tree in the house of the Lord, O father, thou bringest forth as fruit, even after thy demise, a divine oil from thy godly body, ever driving every illness from the faithful who have recourse to thee with love, O wise one.
Thou didst flourish like the palm-tree of which David spake, O father, and wast shown to be a habitation of the all-holy Spirit. Pray thou unceasingly in behalf of us who with faith honor thine all-honored memory, O venerable Cornelius.
Translated by Isaac Lambertsen. Edition menaion.en.lambertsen.