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.
Jewish Publication Society of America Version (JPS1917) - 2 Kings 18:4 >He removed the high places, and broke the pillars, and cut down the Asherah; and he broke in pieces the brazen serpent that Moses had made; for unto those days the children of Israel did offer to it; and it was called Nehushtan.