Numbers 35:31-34

LITV(i) 31 And you shall take no ransom for the life of a murderer; he is punishable for death, for dying he shall die. 32 And you shall take no ransom for him to flee to the city of his refuge, to return to dwell in the land, until the death of the priest. 33 And you shall not pollute the land in which you are, for blood pollutes the land. And no ransom is to be taken for the land for blood which is shed in it, except for the blood of him who sheds it; 34 and you shall not defile the land in which you are living. I dwell in its midst, for I, Jehovah, am dwelling among the sons of Israel.