Deuteronomy 19:13

19:13 You must not pity him, but purge out the blood of the innocent from Israel, so that it may go well with you.

Deuteronomy 21:9

21:9 In this manner you will purge out the guilt of innocent blood from among you, for you must do what is right before the Lord.

Deuteronomy 27:25

27:25 ‘Cursed is the one who takes a bribe to kill an innocent person.’ Then all the people will say, ‘Amen!’