1 Kings 22:6, 13

So the king of Israel brought together the prophets—about four hundred men—and asked them, “Shall I go to war against Ramoth Gilead, or shall I refrain?” “Go,” they answered, “for the Lord will give it into the king’s hand.”

The messenger who had gone to summon Micaiah said to him, “Look, the other prophets without exception are predicting success for the king. Let your word agree with theirs, and speak favorably.”