The revenger of blood - גאל הדם goel haddam, the redeemer of blood; the next in blood to him who was slain. See on Num 35:12 (note).

But if he thrust him of hatred,.... Or, "and if" (r), since the Scripture is still speaking of such that shall die for murder, though in another instance, without having the privilege of a city of refuge; if he thrusts him with a sword or knife, or rather, since, if anything of that kind is included in the first instance of smiting with an instrument of iron, push him down from an high place, as Aben Ezra; so the men of Nazareth intended to have dispatched Christ in that way, Luk 4:29.

or hurl at him by lying in wait, that he die; as a bowing wall, as the same writer instances in, push down that upon him as he passes along, lying in wait for him; or throws anything at him, with an intention to kill him, and does; or casts down anything upon him, a large stone, or anything else, by which he dies.

(r) "et si", Pagninus, Montanus.

If he smite him with an instrument of iron, so that he die, &c.--Various cases are here enumerated in which the Goel or avenger was at liberty to take the life of the murderer; and every one of them proves a premeditated purpose.