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

Ezra 9:12
Now therefore give not your daughters to their sons, neither take their daughters to your sons, nor seek their peace or their wealth for ever: that you may be strong, and eat the good of the land, and leave it for an inheritance to your children for ever.
Torrey's Topical Textbook—AKJV