2Ahaz was twenty years old when he became king, and he reigned in Jerusalem sixteen years. And unlike David his father, he did not do what was right in the eyes of the LORD his God.
3Instead, he walked in the ways of the kings of Israel and even sacrificed his son in the fire, according to the abominations of the nations that the LORD had driven out before the Israelites.
4And he sacrificed and burned incense on the high places, on the hills, and under every green tree.
— 2 Kings 16:2-4