Parallel
Joshua 20:3
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
That the slayer that killeth any person unawares and unwittingly may flee thither: and they shall be your refuge from the avenger of blood.
so that anyone who kills another unintentionally or accidentally may flee there. These will be your refuge from the avenger of blood.