Hesabu 35 : 33 Numbers chapter 35 verse 33

Hivi hamtaitia unajisi nchi ambayo mwakaa; kwa kuwa damu huitia nchi unajisi; wala hapana sadaka itoshayo kwa ajili ya nchi, kwa ajili ya damu iliyomwagwa ndani yake, isipokuwa ni damu ya huyo aliyeimwaga.
soma Mlango wa 35

So you shall not pollute the land in which you are: for blood, it pollutes the land; and no expiation can be made for the land for the blood that is shed therein, but by the blood of him who shed it.