“For my flesh is food indeed, and my blood is drink indeed. He who eats my flesh and drinks my blood abides in me, and I in him. As the living Father sent me, and I live because of the Father, so he who eats me will live because of me. This is the bread which came down from heaven, not such as the fathers ate and died; he who eats this bread will live for ever.” (J0hn 6:55-58)
“[St.] Isaac’s use of the symbolism of wine and inebriation is sometimes transformed into a Eucharistic symbolism which is characteristic of the Syriac tradition from [St.] Ephrem onwards. According to Isaac, love is food and drink, bread and wine, and these are at every hour given to those who love God:
“When we find love, we partake of heavenly bread and are made strong without labor and toil. The heavenly bread is Christ, who came down from heaven and gave life to the world. This is the nourishment of the angels. The person who has found love eats and drinks Christ every day and every hour and is thereby made immortal. ’He that eateth of this bread,’ he says, ’which I will give him, shall not see death unto eternity.’ Blessed is he who consumes the bread of love which is Jesus! He who eats love eats Christ, the God over all, as John bears witness saying, ’God is love’…Love is the kingdom where the Lord mystically promises his disciples [they will] eat in his kingdom.
For when we hear him say, ’Ye shall eat and drink at the table of my kingdom,” what do we suppose we shall eat, if not love? Love, rather than food and drink, is sufficient to nourish a man. This is the wine ’which maketh glad the heart of a man.’ Blessed is he who partakes of this wine!
Licentious men have drunk this wine and become chaste;
sinners have drunk it and have forgotten the pathways of stumbling;
drunkards have drunk this wine, and become fasters;
the rich have drunk it and desired poverty;
the poor have drunk it and been enriched with hope;
the sick have drunk it and become strong;
the unlearned have taken it and become wise.”