Joshua 20:3
that the manslayer who kills any person accidentally or unintentionally may flee there. They shall be to you for a refuge from the avenger of blood.
Treasury of Scripture Knowledge
Summary
That the slayer that killeth any person unawares and unwittingly may flee thither: and they shall be your refuge from the avenger of blood.
General references
Bible References
General references
Numbers 35:19
The avenger of blood shall himself put the murderer to death: when he meets him, he shall put him to death.