21 Thus says the Lord of hosts, the God of Israel: Add your burnt offerings to your sacrifices, and eat the flesh. 22 For in the day that I brought your ancestors out of the land of Egypt, I did not speak to them or command them concerning burnt offerings and sacrifices. 23 But this command I gave them, "Obey my voice, and I will be your God, and you shall be my people; and walk only in the way that I command you, so that it may be well with you." 24 Yet they did not obey or incline their ear, but, in the stubbornness of their evil will, they walked in their own counsels, and looked backward rather than forward. 25 From the day that your ancestors came out of the land of Egypt until this day, I have persistently sent all my servants the prophets to them, day after day; 26 yet they did not listen to me, or pay attention, but they stiffened their necks. They did worse than their ancestors did. 27 So you shall speak all these words to them, but they will not listen to you. You shall call to them, but they will not answer you. 28 You shall say to them: This is the nation that did not obey the voice of the Lord their God, and did not accept discipline; truth has perished; it is cut off from their lips.
Matthew Henry's Commentary on Jeremiah 7:21-28
Commentary on Jeremiah 7:21-28
(Read Jeremiah 7:21-28)
God shows that obedience was required of them. That which God commanded was, Hearken diligently to the voice of the Lord thy God. The promise is very encouraging. Let God's will be your rule, and his favour shall be your happiness. God was displeased with disobedience. We understand the gospel as little as the Jews understood the law, if we think that even the sacrifice of Christ lessens our obligation to obey.