Numbers 35:19; Numbers 35:21; Deuteronomy 19:12

19 eThe avenger of blood shall himself put the murderer to death; when he meets him, he shall put him to death.

21 or in enmity struck him down with his hand, so that he died, then he who struck the blow shall be put to death. He is a murderer. eThe avenger of blood shall put the murderer to death when he meets him.

12 then the elders of his city shall send and take him from there, and hand him over to the avenger of blood, so that he may die.