Deuteronomy 7:3
Do not intermarry with them. Do not give your daughters to their sons or take their daughters for your sons,
Berean Standard Bible
Neither shalt thou make marriages with them; thy daughter thou shalt not give unto his son, nor his daughter shalt thou take unto thy son.
You shall not make marriages with them. You shall not give your daughter to his son, nor shall you take his daughter for your son.