1 Kings 17:6

It was because they lusted that they were condemned and not because they ate flesh, for behold Elijah did not ask for food with lust, but the ravens fed him with bread and flesh, evening and morning, and he drank water from the brook; and when flesh was sent unto the prophet by the Giver, he by the power of his freedom received it like a meal of garden herbs. And thou must in another way understand that it is lust which is reprehensible, for every day, morning after morning, the people gathered the manna which came down, and so long as they gathered it according to the command they were not reprehended or condemned; but when they lusted to gather it in too great a quantity, it swarmed with worms and stank, to the shame of the lust which gathered it.

Therefore do not boast when you fast, do not glory lest fasting profit you nothing; for those things that are done for ostentation will not prolong their fruit into the future, but they consume the reward for present deeds. Elijah was in the desert that no one might see him fast except the ravens alone, when they supplied him with food. Elisha was in the desert where no food except poisonous wild gourds could be found. John was in the desert, where he could find only locusts and wild honey. Feasts were served to those fasting by the holy ministry of angels. Daniel dined among fasting lions. He dined on the dinner of another; the wild beasts did not taste theirs. Feasts fly to those who fast, the feet stagger of those who dine: manna descended from heaven to those who were fasting, the sin of prevarication ascended from those who were banqueting.

"The ravens brought him bread in the morning and meat in the evening." The bread represents perfection and justice accomplished together. This is the bread about which Isaiah says that it is given to those "who will live on the heights, and whose refuge will be the fortress of the rocks, and whose eyes will see the king in his beauty." Indeed, bread, which is the principal nourishment of human beings, indicates quite appropriately their main good. With regard to meat, the fact that it was brought in the evening shows two things: the first is the mourning of penitence, as the psalmist says: "Weeping may linger for the night," and the mortification of flesh and the hard toils, which the penitents marching toward perfection suffer. But their grief will become joy in the morning when the sun of justice, which dispels the darkness of sin, rises.And these words have an even higher meaning, because they are also referred to God the Word, who clothed himself with the flesh of our humanity and came to us in the evening, that is, at the consummation of times, and "filled with good things the hungry" through the Holy Spirit, which "God poured out on them richly through the Messiah, our Savior."