Albert Barnes Commentary Jeremiah 23:14

"In the prophets of Jerusalem also I have seen a horrible thing: they commit adultery, and walk in lies; and they strengthen the hands of evil-doers, so that none doth return from his wickedness: they are all of them become unto me as Sodom, and the inhabitants thereof as Gomorrah." — Jeremiah 23:14 (ASV)

Rather, “But in the prophets of Jerusalem” etc. Their conduct is more strongly condemned than that of the Baal-priests.

They strengthen ... - First by neglecting to warn and rebuke sinners; secondly by the direct influence of their bad example.

They are all of them - They have become, “all of them,” i.e., the people of Jerusalem, and not the prophets only.