Numbers 35:23

“Or with any stone wherewith a man may die, etc.] Which is sufficient to kill a man, if thrown at him: seeing him not; and so without intention: the Jews f519 from hence gather, that a blind man is to be acquitted and dismissed, and not banished and so stands in no need of a city of refuge; though others say he is to be banished, and needs it, and ought to have the privilege of it: and cast it upon him that he die; casting, it upon another account, and with another view, but yet falling upon a man, it kills him; and was not his enemy, neither sought him harm; it was never known that they were at variance, or that the slayer had ever by any overt act discovered any malice and enmity against…”

“The sense is: Inasmuch as to take another man’s life by any means whatsoever is murder, and exposes the murderer to the penalty of retaliation; so, if the deed is done in hostility, it is in truth actual murder, and the murderer shall be slain; but if it be not done in hostility, then the congregation shall interpose to stop the avenger’s hand. Numbers 35:19 When he meeteth him - Provided, of course, it were without a city of refuge. Numbers 35:24 The case of the innocent slayer is here contemplated. In a doubtful case there would necessarily have to be a judicial decision as to the guilt or innocence of the person who claimed the right of asylum. Numbers 35:25 The homicide was safe only…”