Bamidbar 35:31-33

Orthodox Jewish Bible

³¹ Moreover ye shall take no kofer (ransom payment, satisfaction) for the nefesh of a rotze’ach, which is guilty of death; but he shall be surely put to death.

³² And ye shall take no kofer for him that is fled to his ir miklat that he should come again to dwell in HaAretz until the mot HaKohen.

³³ So ye shall not pollute HaAretz wherein ye are; for dahm pollutes HaAretz; and kapporah cannot be made for HaAretz for the shefach dahm therein, except by the dahm of him that committed shefach dahm (shedding of blood).