And he took away the horses that the kings of Judah had given to the sun, at the entering in of the house of the LORD, by the chamber of Nathanmelech the chamberlain, which was in the suburbs, and burned the chariots of the sun with fire. The horses that the kings of Judah had given to the sun - Jarchi says that those who adored the sun had horses which they mounted every morning to go out to meet the sun at his rising. Throughout the East the horse, because of his swiftness and utility, was dedicated to the sun; and the Greeks and Romans feigned that the chariot of the sun was drawn by four horses - Pyroeis, Eous, Aethon, and Phlegon. See the note on 2 Kings 2:11.
Whether these were living or sculptured horses, we cannot tell; the latter is the more reasonable supposition.