Numbers 35:26

He shall abide in it — Be confined to it, partly to shew the hatefulness of murder in God's account by so severe a punishment, inflicted upon the very appearance of it, and partly for the security of the man — slayer, lest the presence of such a person, and his conversation among the kindred of the deceased, might occasion reproach and blood — shed. The death of the high — priest — Perhaps to shew that the death of Christ (the true High — priest, whom the others represented) is the only means whereby sins are pardoned and sinners set at liberty.