Nehushtan

of copper; a brazen thing a name of contempt given to the
serpent Moses had made in the wilderness (Num. 21:8), and which
Hezekiah destroyed because the children of Israel began to
regard it as an idol and "burn incense to it." The lapse of
nearly one thousand years had invested the "brazen serpent" with
a mysterious sanctity; and in order to deliver the people from
their infatuation, and impress them with the idea of its
worthlessness, Hezekiah called it, in contempt, "Nehushtan," a
brazen thing, a mere piece of brass (2 Kings 18:4).