Albert Barnes Commentary Jeremiah 23:30

"Therefore, behold, I am against the prophets, saith Jehovah, that steal my words every one from his neighbor." — Jeremiah 23:30 (ASV)

Jeremiah gives in succession the main characteristics of the teaching of the false prophets. The first is that they steal God’s words from one another. Having no message from God, they try to imitate the true prophets.