28 And the man of God drew near, and spoke to the king of Israel and said, Thus saith Jehovah: Because the Syrians have said, Jehovah is a god of the mountains, but he is not a god of the valleys, I will give all this great multitude into thy hand, and ye shall know that I am Jehovah.

Matthew Henry's Commentary on 1 Kings 20:28

Commentary on 1 Kings 20:22-30

(Read 1 Kings 20:22-30)

Those about Benhadad advised him to change his ground. They take it for granted that it was not Israel, but Israel's gods, that beat them; but they speak very ignorantly of Jehovah. They supposed that Israel had many gods, to whom they ascribed limited power within a certain district; thus vain were the Gentiles in their imaginations concerning God. The greatest wisdom in worldly concerns is often united with the most contemptible folly in the things of God.