Thus says the LORD of hosts, the God of Israel: “Add your burnt offerings to your sacrifices, and eat the flesh.
The Prophet here taunts the Jews for being so sedulous in their attention to sacrifices, while they had no care for piety. Hence he says by way of ridicule, “Offer your sacrifices, and accumulate burnt-offerings and victims, and eat flesh.” The last clause proves that God regarded as nothing their sacrifices, and that nothing was acceptable to him, though the Jews spent much money and spared no labors.
God, having shown the people that the temple would not protect them while they polluted it with their wickedness, here shows them that their sacrifices would not atone for them, nor be accepted, while they went on in disobedience. See with what contempt he here speaks of their ceremonial service (Jer 7:21).
Commenting on Jeremiah 7:21-28
Thus saith the Lord God of hosts, the God of Israel,.... 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...