John Calvin's Bible Commentary
Jeremiah 23:17
Jeremiah introduces another mark by which the false prophets might be known as different from the true prophets, — they flattered the ungodly and wicked despisers of God. He thus repeats what he had before said, that they strengthened the hands of the wicked, so that they became hardened in their impiety, and threw aside every care for repentance. Though he uses different words, yet the meaning is the same, that they promised peace, or prosperity, to the despisers of God, for the word שלום, shalum, means to live well or happily.
They say, then, to those who despise or reject me; for נאף, nats, means both. The doubling of the word for “saying,” is also emphatical, אמרים אמור, amrim amur: (96) for we know with how much haughtiness and confidence the false prophets dared to announce their dreams; for they were led by the spirit of pride, as they were the children of Satan. Hence then was their confidence, so that they made their declarations as though they had come down from heaven. They say, then, by saying; that is, they promise, and that with great effrontery, that peace would be to all the despisers of God; and not only so, but they pretended God’s name, Spoken, has Jehovah (97) They wished to be deemed the instruments or agents of the Holy Spirit, while they were vainly announcing, as it has been said, their own imaginations. And hence Jeremiah applied to them, though improperly, the word vision, They speak the vision of their own heart By using this word he makes a concession; for he might have said only, that they adduced nothing but trifles, even the falsehoods which they themselves had devised, but he mentions the word חזון, chezun, which in itself ought to be deemed of high import. And yet he means that they were only apes as prophets, when they prattled of visions and confidently declared that they brought forward the revelations of the Spirit. He then concedes to them, though improperly, that they saw visions; but what did they see? even that Jehovah had spoken, Peace shall be to you
Then he says, They promise to those who walk in the wickedness of their own heart, that all things shall turn out well to them, No evil shall come upon you; as though he had said, “They promise impunity to all the wicked.”
17.They boldly say to those who despise me, Spoken hath Jehovah, “Peace shall be to you;”
And to every one who walks in the resolutions of his own heart, They say, “Not come upon you shall evil.” This rendering also corresponds more with what is said in Jeremiah 23:25, that the prophets prophesied lies in God’s name. — Ed.