1 Kings 22:6, 13

Then the king of Israel gathered the prophets together, about four hundred men, and said to them, “Shall I go to battle against Ramoth-gilead, or should I not?” And they said, “Go up, for the LORD has handed it over to the king.”

Then the messenger who went to summon Micaiah said to him, “Listen carefully, the words of the prophets are unanimously favorable to the king. Please let your words be like the word of one of them, and speak favorably.”