That the slayer that killeth [any] person
unawares [and] unwittingly may flee thither: and they shall be your refuge
from the avenger of blood.
BSB
so that anyone who kills another unintentionally or accidentally may flee there. These will be your refuge from the avenger of blood.
WEB
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.
YLT
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.