Numbers 35:30-32

Complete Jewish Bible

³⁰ “‘If anyone kills someone, the murderer is to be put to death upon the testimony of witnesses; but the testimony of only one witness will not suffice to cause a person to be put to death. ³¹ Also, you are not to accept a ransom in lieu of the life of a murderer condemned to death; rather, he must be put to death. ³² Likewise, you are not to accept for someone who has fled to his city of refuge a ransom that would allow him to return to his land before the death of the cohen.