Joshua 20
Young's Literal Translation (YLT)
3 for the fleeing thither of a man-slayer smiting life inadvertently, without knowledge; and they have been to you for a refuge from the redeemer of blood.
King James Version (KJV)
3 That the slayer that killeth any person unawares and unwittingly may flee thither: and they shall be your refuge from the avenger of blood.