He removed the high places, shattered the sacred pillars, and cut down the Asherah poles. He also demolished the bronze snake called Nehushtan that Moses had made, for up to that time the Israelites had burned incense to it.
KJV
He removed the high places, and brake the images, and cut down the groves, and brake in pieces the brasen serpent that Moses had made: for unto those days the children of Israel did burn incense to it: and he called it Nehushtan.
ASV
He removed the high places, and brake the pillars, and cut down the Asherah: and he brake in pieces the brazen serpent that Moses had made; for unto those days the children of Israel did burn incense to it; and he called it Nehushtan.