Jamieson, Fausset and Brown on 1 Kings 22:14-17

14-17. what the Lord saith unto me, that will I speak--On the way the messenger who conducted [Micaiah] to the royal presence informed him of the tenor of the prophecies already given and recommended him to agree with the rest, no doubt from the kindly motive of seeing him released from imprisonment. But Micaiah, inflexibly faithful to his divine mission as a prophet, announced his purpose to proclaim honestly whatever God should bid him. On being asked by the king, "Shall I go against Ramoth-gilead, or shall I forbear?" the prophet gave precisely the same answer as the previous oracles that had been consulted; but it must have been given in a sarcastic tone and in ironical mockery of their way of speaking. Being solemnly urged to give a serious and truthful answer, Micaiah then declared the visionary scene the Spirit had revealed to him;--