וְטִמֵּ֣א אֶת־הַתֹּ֔פֶת אֲשֶׁ֖ר בְּגֵ֣י בני־[בֶן־] הִנֹּ֑ם לְבִלְתִּ֗י לְהַעֲבִ֨יר אִ֜ישׁ אֶת־בְּנ֧וֹ וְאֶת־בִּתּ֛וֹ בָּאֵ֖שׁ לַמֹּֽלֶךְ׃
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.
Read halakhic rulings (Jewish law) on II Kings 23:10: and classical halakhic sources.