“'Who can tell the mighty deeds of the Lord, or proclaim all his praises?' (Ps 106:2) Which shepherd ever nourished his sheep with his own body? But what am I saying – a shepherd? Often, mothers entrust their children to a wet nurse as soon as they are born. But Jesus Christ cannot accept that for his sheep; he himself nourishes us with his own blood, and thus he causes us to become one single body with him.
My brothers, consider that Christ was born of our own human substance. But, you will say, so what? That doesn’t concern all human beings. Excuse me, my brother; it is a great advantage for all of them. If he became man, if he came to take on our nature, that concerns the salvation of all human beings. And if he came for all, he also came for each one in particular. Perhaps you will say: So why have not all accepted the fruit that they were supposed to receive through that coming? Don’t blame Jesus, who chose this means for the salvation of everyone; the fault lies with those who reject this kindness. For in the Eucharist, Jesus Christ unites himself to each of his faithful; he causes them to be reborn, he nourishes them with himself, he does not abandon them to another, and thus he convinces them once again that he really took on our flesh."
-Saint John Chrysostom