Numbers 35:12

“And they shall be unto you cities of refuge from the avenger, etc.] Or near kinsman; for as the right of redemption of an estate that was mortgaged belonged to such an one, so of revenging the blood of any one that was killed: that the manslayer die not; by the hand of the avenger, who in the heat of his passion would, could he come at him, fall upon him, and slay him, to avenge the death of his relation on him: until he stand before the congregation in judgment; before the court of judicature, to be examined, tried, and judged, whether the murder was committed knowingly and willingly, or whether through mistake and at unawares: this was done either before the court of judicature in the city…”

“The avenger - Hebrew גאל gā'al, a term of which the original import is uncertain. The very obscurity of its etymology testifies to the antiquity of the office which it denotes. That office rested on the principle of Genesis 9:6, “whoso sheddeth man’s blood, by man shall his blood be shed.” The unwritten code of the East conceded to the nearest kinsman of a murdered man the right of avenging the blood that had been shed. Such rude justice necessarily involved grave evils. It gave no opportunity to the person charged with crime of establishing is innocence; it recognized no distinction between murder, manslaughter, and accidental homicide; it perpetuated family blood-feuds, the avenger of…”

“From the avenger - Heb. from the redeemer, or, from the next kinsman, to whom by the law belonged the right of redemption of the lands of; and vindication of the injury done to, the person deceased. Die not - Be not killed by the avenger meeting him in some other place. Before the congregation - Before the judges or elders who were appointed in every city for the decision of criminal causes, who were to examine, and that publickly before the people, whether the murder was wilful or casual. Numbers 35:14”

“35:12 protection from a dead person’s relatives who want to avenge the death: Justice was enacted through vengeance at the hand of a designated avenger, usually a relative.”

“from the avenger: Num 35:19, Num 35:25-27; Deu 19:6; Jos 20:3-6, Jos 20:9; Sa2 14:7 until he stand: Num 35:24; Deu 19:11, Deu 19:12; Jos 20:4-6 Numbers 35:13”

“These towns were to serve for a refuge from the avenger of blood, that the manslayer might not die before he had taken his trial in the presence of the congregation. The number of cities was fixed at six, three on the other side of the Jordan, and three on this side in the land of Canaan, to which both the children of Israel, and also the foreigners and settlers who were dwelling among them, might flee. In Deu 19:2., Moses advises the congregation to prepare (הכין) the way to these cities, and to divide the territory of the land which Jehovah would give them into three parts (שׁלּשׁ), i.e., to set apart a free city in every third of the land, that every manslayer might flee thither, i.e.,…”