He shall slay him — Either by himself, as the following words shew; so it is a permission, that he may do it without offence to God or danger to himself: or by the magistrate, from whom he shall demand justice: so it is a command.
Related Commentaries of Numbers 35:19
Numbers 35:19
19 The revenger of blood himself shall slay the murderer: when he meeteth him, he shall slay him.