John Gill Commentary 2 Kings 1:3

"But the angel of Jehovah said to Elijah the Tishbite, Arise, go up to meet the messengers of the king of Samaria, and say unto them, Is it because there is no God in Israel, that ye go to inquire of Baal-zebub, the god of Ekron?" — 2 Kings 1:3 (ASV)

But the angel of the Lord said to Elijah
One of the ministering spirits sent by the Lord to him:

arise, go up to meet the messengers of the king of Samaria :
that is, the king of Israel, whose capital city was Samaria:

is it not because there is not a God in Israel ;
known, acknowledged, and worshipped there, of whom there had been sufficient proof of his deity and divine perfections, as omniscience, omnipotence

that you go to inquire of Baalzebub the god of Ekron ?
about future things, when they had God nigh to them, fully acquainted with them, as this message shows.