Exodus 34:16
And you take of their daughters to your sons, and their daughters go a whoring after their gods, and make your sons go a whoring after their gods.
Torrey's Topical Textbook—AKJV

Deuteronomy 7:3
Neither shall you make marriages with them; your daughter you shall not give to his son, nor his daughter shall you take to your son.
Torrey's Topical Textbook—AKJV