Exodus 34:16

WEB

and you take of their daughters to your sons, and their daughters play the prostitute after their gods, and make your sons play the prostitute after their gods.

KJV

And thou take of their daughters unto thy sons, and their daughters go a whoring after their gods, and make thy sons go a whoring after their gods.

Commentary

And thou take of their daughters unto thy sons,.... That is, marry them to them, which explains what is meant by making a covenant with them, entering into such a near relation, and joining families, and thus intermixing with one another: and their daughters go a whoring after their gods; the worship of whom they have been trained up in from their infancy, and therefore hanker after them, and commit whoredom in a spiritual sense with them: and make thy sons go a whoring after their gods; by the means of tempting and drawing them into idolatrous practices, as the wives of Solomon were a snare to him.