1 Kings 11:2

Concerning which the Lord said Ye shall not go in unto them This relates especially to the Hittites and the Zidonians, and consequently the rest of the seven nations of Canaan, with whom they were forbidden to make any marriage, (Exodus 34:16; Deuteronomy 7:3,) for the weighty reason here mentioned. For though they might marry women of other nations, if these women embraced the true religion, yet of the seven nations of Canaan they might not, although they were converted to their religion; lest the venom should lurk and lie hid, and at last break out and infect them. Great was the foresight wherewith God endowed Moses in giving this precept, as Grotius remarks; and the not observing it was of fatal consequence to the Israelites, and laid the foundation of their utter ruin. Solomon clave unto these in love Was extravagantly fond of them. He had much knowledge; but to what purpose, when he knew not how to govern his appetites?