Thematic Bible: In marrying heathen women

Now king Solomon loved many foreign women, together with the daughter of Pharaoh, women of the Moabites, Ammonites, Edomites, Sidonians, and Hittites, of the nations concerning which LORD said to the sons of Israel, Ye shall not go among them, neither shall they come among you, for surely they will turn away your heart after their gods. Solomon clave to these in love.

In those days also I saw the Jews who had married women of Ashdod, of Ammon, [and] of Moab. And their sons spoke half in the speech of Ashdod, and could not speak in the Jews' language, but according to the language of each people. And I contended with them, and cursed them, and smote certain of them, and plucked off their hair, and made them swear by God, [saying], Ye shall not give your daughters to their sons, nor take their daughters for your sons, or for read more.
Did not Solomon king of Israel sin by these things? Yet there was no king like him among many nations, and he was beloved of his God, and God made him king over all Israel. Nevertheless foreign women caused even him to sin.