Charles Ellicott Commentary 1 Kings 22:19-22

"And [Micaiah] said, Therefore hear thou the word of Jehovah: I saw Jehovah sitting on his throne, and all the host of heaven standing by him on his right hand and on his left. And Jehovah said, Who shall entice Ahab, that he may go up and fall at Ramoth-gilead? And one said on this manner; and another said on that manner. And there came forth a spirit, and stood before Jehovah, and said, I will entice him. And Jehovah said unto him, Wherewith? And he said, I will go forth, and will be a lying spirit in the mouth of all his prophets. And he said, Thou shalt entice him, and shalt prevail also: go forth, and do so." — 1 Kings 22:19-22 (ASV)

The symbolic vision of Micaiah, which naturally recalls the well-known description in Job 1:6-12 of the dealings of Satan with the Lord Himself, is to be taken as a symbol, and nothing more. (Josephus, characteristically enough, omits it altogether.) The one idea to be conveyed is the delusion of the false prophets by a spirit of evil, as a judgment of God on Ahab’s sin, and on their degradation of the prophetic office. The imagery is borrowed from the occasion. It is obviously drawn from the analogy of a royal court, where, as is the case before Micaiah’s eyes, the king seeks counsel against his enemies.