Commentaries
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.
21. 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; Ho 8:13; Am 5:21, 22).