1Ki 22:5-7
But as Jehoshaphat wished also to inquire the word of the Lord concerning the war, Ahab gathered together about 400 prophets, who all predicted as out of one mouth a prosperous result to the campaign. These 400 prophets are neither the 400 prophets of Asherah who had not appeared upon Carmel when Elijah was there (1Ki 18:19-20), nor prophets of Baal, as some of the earlier commentators supposed, since Ahab could not inquire of them את־דּבר יהוה. On the other hand, they were not “true prophets of Jehovah and disciples of the prophets” (Cler., Then.), but prophets of Jehovah worshipped under the image of an ox, who practised prophesying as a trade without any call from God, and even if they were not in the pay of the idolatrous kings of Israel, were at any rate in their service. For Jehoshaphat did not recognise them as genuine prophets of Jehovah, but inquired whether there was not such a prophet still in existence (1Ki 22:7), that they might inquire the will of the Lord of him (מאותו).