Jeremiah 7:21

“Thus saith the Lord God of hosts, the God of Israel, etc.] The Lord of armies above and below, and the covenant God of the people of Israel; who were bound to serve him, not only by the laws of creation, and the bounties of Providence, but were under obligation so to do by the distinguishing blessings of his goodness bestowed upon them; wherefore their idolatry, and other sins committed against him, were the more heinous and aggravated: put your burnt offerings unto your sacrifices, and eat flesh; that is, add one offering to another; offer every kind of sacrifice, and, when you have done, eat the flesh of them yourselves; for that is all the advantage that comes by them; they are not…”

“Put . . . burnt offerings unto . . . sacrifices . . . eat flesh--Add the former (which the law required to be wholly burnt) to the latter (which were burnt only in part), and "eat flesh" even off the holocausts or burnt offerings. As far as I am concerned, saith Jehovah, you may do with one and the other alike. I will have neither (Isa 1:11; Hos 8:13; Amo 5:21-22).”

“The meaning is, Increase your sacrifices as you will. Acid burnt-offering to peace-offerings. All is in vain as long as you neglect the indispensable requirements of obedience and moral purity. Eat flesh is equivalent to sacrifice. The flesh of animals offered in sacrifice was usually eaten by the offerers, and this meal was regarded as a symbol of reconciliation. God and man partook of the same victim, and so were made friends. This passage Jeremiah 7:21-28 is the Haphtarah (lesson) from the prophets, after the Parashah, Lev. 6–8, or Lesson from the Law. The selection of such a Haphtarah shows that the Jews thoroughly understood that their sacrifices were not the end of the Law, but a means…”

“Put - Ironical words, take those that are peculiar, and to be all burnt to me, and do what you will with them, I will have none of them. To your sacrifices - That part of your sacrifices, which you are allowed to eat, they are but as profane food. Jeremiah 7:22”

“Put: Jer 6:20; Isa 1:11-15; Hos 8:13; Amo 5:21-23 Jeremiah 7:22”

“The multiplication of burnt and slain offerings will not avert judgment. Your burnt-offerings add to your slain-offerings. In the case of the זבחים, the greater part of the flesh was eaten at the sacrificial meals by those who brought them. Along with these they might put the burnt-offerings, which were wont to be burnt entire upon the altar, and eat them also. The words express indignation at the sacrifices of those who were so wholly alienated from God. God had so little pleasure in their sacrifices, that they might eat of the very burnt-offerings. To show the reason of what is here said, Jeremiah adds, in Jer 7:22, that God had not commanded their fathers, when He led them out of Egypt,…”