Athanasius of Alexandria

He is angry with them, saying by Isaiah, “Who has required these of your hands?” And by Jeremiah, since they were very bold, he threatens, “Gather together your whole burnt offerings with your sacrifices, and eat flesh, for I did not speak to your ancestors or command them in the day that I brought them out of the land of Egypt, concerning whole burnt offerings and sacrifices.” For they did not act as was right, neither was their zeal according to law, but they rather sought their own pleasure in such days, as the prophet accuses them, beating down their bondsmen and gathering themselves together for strifes and quarrels, and they struck the lowly with the fist and did all things that tended to their own gratification. For this cause, they continue without a feast until the end, although they make a display now of eating flesh, out of place and out of season. For, instead of the legally appointed lamb, they have learned to sacrifice to Baal; instead of the true unleavened bread, “they collect the wood, and their fathers kindle the fire, and their wives prepare the dough, that they make cakes to the host of heaven and pour out libations to strange gods, that they may provoke me to anger, says the Lord.” … Therefore now, “he who among them sacrifices an ox is as he who strikes a man, and he who sacrifices a lamb is as he who kills a dog, he that offers fine flour, it is as [if he offered] swine’s blood.…” Now these things will never please God, neither has the Word required this of them. But he says, “These have chosen their own ways, and their abominations are what their soul delights in.”