Joshua 20:6
He must remain in that city until his case is decided by the assembly and the high priest dies. Then the one who committed manslaughter may return home to the city from which he escaped."
Numbers 35:12
And they must stand as your towns of refuge from the avenger in order that the killer may not die until he has stood trial before the community.
Numbers 35:24-25
then the community must judge between the slayer and the avenger of blood according to these decisions.
Hebrews 9:26
for then he would have had to suffer again and again since the foundation of the world. But now he has appeared once for all at the consummation of the ages to put away sin by his sacrifice.