Numbers 35:28-30

EasyEnglish Bible

²⁸ That is because the killer should have stayed in his safe city until the death of the leader of the priests. But after the leader of the priests dies, the killer may return to his own home.

²⁹ Wherever you and your descendants live, these are the rules that you must obey for all future time.

³⁰ Before you kill a murderer, people must agree that they saw him kill someone. But if only one person saw what happened, that is not enough for you to kill him.