1 Kings 11:1

King Solomon loved many strange women It was not a fault in him that he married Pharaoh's daughter; she being a proselyte, as is generally supposed, to the Jewish religion. But in marrying so many other women besides, he committed two sins against the law; one in multiplying wives, and another in marrying those of strange nations, who still retained their idolatrous religion; which was expressly against the law, as the next verse declares.