Our food shall be the Lamb of God...

...Let us strengthen our hearts with the hope of grace, and not with foods which brought no benefit to those who trusted in them. Our food shall be the Lamb of God, on the holy and radiant night of His Awakening: the Victim offered for us, given in communion to the disciples on the evening of the Mystery, who disperses the darkness of ignorance by the Light of His Resurrection.

From the Aposticha, Vespers on the evening of the Sunday of the Last Judgement, Lenten Triodion, p. 166