Deuteronomy 7:2
and when Jehovah thy God shall give them up before thee and thou shalt smite them, then shalt thou utterly destroy them: thou shalt make no covenant with them, nor shew mercy unto them.and when Jehovah thy God shall give them up before thee and thou shalt smite them, then shalt thou utterly destroy them: thou shalt make no covenant with them, nor shew mercy unto them.