Numbers 35:33

American Standard Version (ASV):
So ye shall not pollute the land wherein ye are: for blood, it polluteth the land; and no expiation can be made for the land for the blood that is shed therein, but by the blood of him that shed it.

King James Version (KJV):
So ye shall not pollute the land wherein ye [are]: for blood it defileth the land: and the land cannot be cleansed of the blood that is shed therein, but by the blood of him that shed it.