Deuteronomy 7:2-4

Wycliffe Bible

² and when thy Lord God hath betaken them to thee, thou shalt smite them unto death, thou shalt not make with them a bond of peace, neither thou shalt have mercy upon them, (and when the Lord thy God hath delivered them unto thee, thou shalt strike them down unto the death, thou shalt not make a covenant, or a peace treaty, with them, nor shalt thou have mercy on them,)

³ neither thou shalt fellowship marriages with them; thou shalt not give thy daughter to his son, neither thou shalt take his daughter to thy son (nor shalt thou take his daughter for thy son);

⁴ for she shall deceive thy son, that he follow not me, that he serve more alien gods; and then the fierce vengeance of the Lord shall be wroth, and shall do away thee soon. (for she shall deceive thy son, so that he shall not follow me, and moreover, so that he serve foreign, or other, gods; and then the Lord shall be angry, and with fierce vengeance he shall swiftly do thee away.)