Deuteronomy 20:13-15

Young's Literal Translation

¹³ and Jehovah thy God hath given it into thy hand, and thou hast smitten every male of it by the mouth of the sword.

¹⁴ Only, the women, and the infants, and the cattle, and all that is in the city, all its spoil, thou dost seize for thyself, and thou hast eaten the spoil of thine enemies which Jehovah thy God hath given to thee.

¹⁵ So thou dost do to all the cities which are very far off from thee, which are not of the cities of these nations.