Deuteronomy 21:8-9

BSB(i) 8 Accept this atonement, O LORD, for Your people Israel whom You have redeemed, and do not hold the shedding of innocent blood against them.” And the bloodshed will be atoned for. 9 So you shall purge from among you the guilt of shedding innocent blood, since you have done what is right in the eyes of the LORD.