Joshua 20:3; Joshua 20:5-6

Joshua 20:3

3 so that anyone who kills a person accidentally and unintentionally may flee there and find protection from the avenger of blood.

Joshua 20:5-6

5 If the avenger of blood comes in pursuit, the elders must not surrender the fugitive, because the fugitive killed their neighbor unintentionally and without malice aforethought.

6 They are to stay in that city until they have stood trial before the assembly and until the death of the high priest who is serving at that time. Then they may go back to their own home in the town from which they fled.”