So Othniel son of Caleb’s brother Kenaz captured the city, and Caleb gave his daughter Acsah to him in marriage.
The historian seems pleased with every occasion to make mention of Caleb and to do him honour, because he had honoured God in following him fully. Observe, I. The grant Joshua made him of the mountain of Hebron for his inheritance is here repeated (Jos 15:13), and it is said to be given him. 1. According to the commandment of the Lord to Joshua.
Commenting on Joshua 15:13-19
And Othniel the son of Kenaz, the brother of Caleb, took it,.... The relation of Othniel to Caleb is a little intricate, and, as it is understood, occasions objections to the marriage of Caleb's daughter to him; it seems, at first sight, that he was Caleb's own brother, a younger brother, and so uncle to his daughter, and such marriages were forbidden, Lev 18:14.
OTHNIEL, FOR HIS VALOR, HAS ACHSAH TO WIFE. (Jos 15:16-20) He that smiteth Kirjath-sepher--This offer was made as an incentive to youthful bravery (see on Sa1 17:25); and the prize was won by Othniel, Caleb's younger brother (Jdg 1:13; Jdg 3:9). This was the occasion of drawing out the latent energies of him who was destined to be the first judge in Israel.
Commenting on Joshua 15:16-20