Charles Spurgeon Commentary Jeremiah 23:17

"They say continually unto them that despise me, Jehovah hath said, Ye shall have peace; and unto every one that walketh in the stubbornness of his own heart they say, No evil shall come upon you." — Jeremiah 23:17 (ASV)

This is yet another mark of the false prophet. He always tries to smooth down the consequences of sin. "In the future state," he says, "sin may occasion some temporary inconvenience, but all things will come right sooner or later." That is a man sent of the devil. He is no servant of the living God.

By these three tests you can identify who the false prophets are:

1. They make you vain.
2. They speak out of their own heart, and not out of the mouth of God.
3. They try to make it easy for you to sin by denying the greatness of the penalty attached to it.