“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.
Here is seen more clearly what I have stated, — that the Jews were not addressed, because they had no ears. Here then God addresses his Prophet and says, “The children will be like their parents: for thou shalt indeed bear the commands which I give thee, but it will be without any advantage; for they will not hear, and when thou callest to them...
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
Therefore thou shalt speak all these words unto them,.... Before mentioned in the chapter; exhortations to duty, dehortations from sin, promises and threatenings: but they will not hearken to thee: so as to reform from their evil ways, and do the will of God; they will neither be allured by promises, nor awed by menaces: thou shalt also call unto them; with a loud voice...