Numbers 35:28-30

Darby Translation

²⁸ for the manslayer should have remained in the city of his refuge until the death of the high-priest; but after the death of the high-priest he may return into the land of his possession.

²⁹ And this shall be unto you a statute of right throughout your generations in all your dwellings.

³⁰ Whoever shall smite a person mortally, at the mouth of witnesses shall the murderer be put to death; but one witness shall not testify against a person to cause him to die.