I Kings 11:1-4

But King Solomon loved many foreign women, as well as the daughter of Pharaoh: women of the Moabites, Ammonites, Edomites, Sidonians, and Hittites— from the nations of whom the LORD had said to the children of Israel, “You shall not intermarry with them, nor they with you. Surely they will turn away your hearts after their gods.” Solomon clung to these in love. And he had seven hundred wives, princesses, and three hundred concubines; and his wives turned away his heart. For it was so, when Solomon was old, that his wives turned his heart after other gods; and his heart was not loyal to the LORD his God, as was the heart of his father David.