Joshua 20:6
He is to stay in that city until he stands trial before the assembly and until the death of the high priest serving at that time.
Numbers 35:12
You will have the cities as a refuge from the avenger, so that the one who kills someone will not die until he stands trial before the assembly.
Numbers 35:24-25
the assembly is to judge between the slayer and the avenger of blood according to these ordinances.
Hebrews 9:26
Otherwise, He would have had to suffer many times since the foundation of the world. But now He has appeared one time, at the end of the ages,