In this way you will purge from among you the guilt of innocent blood, since you will be doing what is right in the eyes of Yahweh.
In context
7and declare: “Our hands did not shed this blood, and our eyes did not see it done. 8Accept atonement, Yahweh, for your people Israel, whom you redeemed, and do not hold your people Israel guilty of innocent blood.” Then the bloodguilt will be atoned for. 9In this way you will purge from among you the guilt of innocent blood, since you will be doing what is right in the eyes of Yahweh. 10When you go out to war against your enemies and Yahweh your God delivers them into your hand and you take captives, 11if you see among the captives a beautiful woman and desire her, and want to take her as your wife,
