Thus saith the LORD concerning the prophets that make my people err, that bite with their teeth, and cry, Peace; and he that putteth not into their mouths, they even prepare war against him. Thus saith the Lord concerning the prophets. Here he attacks the false prophets as before he had attacked the "princes."
That make my people err - knowingly mislead my people by not denouncing their sins as incurring judgment.
That bite with their teeth, and cry, Peace - i:e., who, so long as they are supplied with food, promise peace and prosperity in their prophecies.
And he that putteth not into their mouths, they even prepare war against him - whenever they are not supplied with food, they foretell war and calamity.
Prepare war - literally sanctify
War - i:e., proclaim it as a holy judgment of God because they are not fed (note, Jeremiah 6:4: cf. Isaiah 13:3; Joel 1:14).