Jeremiah 23:18 - Joseph Benson’s Commentary on the Old and New Testaments

For who hath stood in the counsel of the Lord? These are either the words of God expressing that none of these pretended prophets knew any thing of his designs, as he had not revealed them unto them, and they could not otherwise know them; or else they are to be understood as the words of these false prophets, who, among other things, told the people, that God's counsels were not to be absolutely known; and that therefore neither Jeremiah, nor the rest of the prophets, who foretold the destruction of Jerusalem, were informed more than others of what God intended to do.