"And Zedekiah the son of Chenaanah had made for himself horns of iron and said 'With these you shall push the Syrians until they are destroyed.' And all the prophets prophesied so, and said, 'Go up to Ramoth-Gilead and triumph; the Lord will give it into the hand of the king."

"And the messenger who went to summon Micaiah said to him, 'Behold, the words of the prophets with one accord are favorable to the king; let your word be like the word of one of them, and speak favorably. No whining!'"

1Kings 22:11-13

If you forbid criticism, all you'll hear is sycophants. That never ends well.