Jeremiah 7:22 - Matthew Poole's English Annotations on the Holy Bible

Some would argue from hence that sacrifices were at first an invention of men, as papists and Socinians; and because they should not be used to idols, God gave way for the introducing them into his worship; but it is evident in Scripture that they have been of Divine institution ever since Adam, Genesis 4:3,4. As to the meaning of the words, God doth not condemn them, or deny them, save only comparatively in respect of obedience, not so much these as obeying his commands, 1 Samuel 15:22 Hosea 6:6, i.e. mercy rather than sacrifice. Negatives are often put for comparatives, Genesis 45:8 Exodus 16:8 1 Thessalonians 5:45. Hence the Hebrew is, the matter of burnt-offerings; for sacrifices were not instituted for themselves, but for other uses, and to be signs of faith in his promises, and obedience to his commands, as in the next verse, where the condition, promise, and end are all set down.