John Gill Commentary Jeremiah 7:17

"Seest thou not what they do in the cities of Judah and in the streets of Jerusalem?" — Jeremiah 7:17 (ASV)

Do you not see what they do in the cities of Judah
Not in one city only, but in all of and particularly the chief of them; as follows: and in the streets of Jerusalem ?
these words, with what is said next, show the reason why the prophet was forbidden to pray for this people, and the Lord was so provoked with them as to cast them out of his sight; and he appeals to the prophet, and to what he saw, or which he might see; for what was done was done not in secret, but openly, in the very streets of the city; by which he might be sufficiently convinced it was but just with God to do what he determined to do with them.