Deuteronomy 7:1-3

Young's Literal Translation

7 `When Jehovah thy God doth bring thee in unto the land whither thou art going in to possess it, and He hath cast out many nations from thy presence, the Hittite, and the Girgashite, and the Amorite, and the Canaanite, and the Perizzite, and the Hivite, and the Jebusite, seven nations more numerous and mighty than thou,

² and Jehovah thy God hath given them before thee, and thou hast smitten them -- thou dost utterly devote them -- thou dost not make with them a covenant, nor dost thou favour them.

³ `And thou dost not join in marriage with them; thy daughter thou dost not give to his son, and his daughter thou dost not take to thy son,