so that anyone who will have struck down a life unintentionally may flee to them. And so, he may be able to escape from the wrath of a close relative, who is an avenger of blood
Other versions
King James Version
That the slayer that killeth any person unawares and unwittingly may flee thither: and they shall be your refuge from the avenger of blood.English Standard Version
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.New International Version
so that anyone who kills a person accidentally and unintentionally may flee there and find protection from the avenger of blood.