Numbers 35:12

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., might be able to reach the free city without being detained by length of distance or badness of road, lest, as is added in Deu 19:6, the avenger of blood pursue the slayer while his heart is hot (יחם, imperf. Kal of חמם), and overtake him because the way is long, and slay him (נפשׁ הכּה, as in Gen 37:21), whereas he was not worthy of death (i.e., there was no just ground for putting him to death), "because he had not done it out of hatred." The three cities of refuge on the other side were selected by Moses himself (Deu 4:41-43); the three in Canaan were not appointed till the land was distributed among the nine tribes and a half (Jos 20:7). Levitical or priests' towns were selected for all six, not only because it was to the priests and Levites that they would first of all look for an administration of justice (Schultz on Deu 19:3), but also on the ground that these cities were the property of Jehovah, in a higher sense than the rest of the land, and for this reason answered the idea of cities of refuge, where the manslayer, when once received, was placed under the protection of divin…

We have in this chapter the determination of another question that arose upon the case of the daughters of Zelophehad. God had appointed that they should inherit, Num 27:7. Now here, I. An inconvenience is suggested, in case they should marry into any other tribe (Num 36:1-4). II. It is prevented by a divine appointment that they should marry in their own tribe and family (Num 36:5-7), and this is settled for a rule in like cases (Num 36:8, Num 36:9); and they did marry accordingly to some of their own relations (Num 36:10-12), and with this the book concludes (Num 36:13).

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.