Deuteronomy 19:11-13

Darby Translation

¹¹ But if a man hate his neighbour, and lie in wait for him, and rise up against him, and smite him mortally that he die, and he flee into one of these cities,

¹² then the elders of his city shall send and fetch him thence, and deliver him into the hand of the avenger of blood, that he may die.

¹³ Thine eye shall not spare him; and thou shalt put away innocent blood from Israel, that it may be well with thee.