Deuteronomy 19:6; Deuteronomy 19:12; Joshua 20:3; Joshua 20:5

lest sthe avenger of blood in hot anger pursue the manslayer and overtake him, because the way is long, and strike him fatally, though the man did not deserve to die, since he had not hated his neighbor in the past.

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.

that the manslayer who strikes any person without intent or unknowingly may flee there. They shall be for you a refuge from the avenger of blood.

And if the avenger of blood pursues him, they shall not give up the manslayer into his hand, because he struck his neighbor unknowingly, and did not hate him in the past.