He also desecrated Topheth in the Valley of Ben-hinnom so that no one could sacrifice his son or daughter in the fire to Molech.
Jewish Publication Society of America Version (JPS1917) - 2 Kings 23:10 >And he defiled Topheth, which is in the valley of the son of Hinnom, that no man might make his son or his daughter to pass through the fire to Molech.