The sons of Caleb, to wit, of that Caleb mentioned 1Ch_2:18, as appears by comparing that verse with 1Ch_2:21. And these are his sons by another and his third wife. See Poole "1Ch_2:18".
Ziph; the name either of a man, or of a place, of which see Jos_15:24,55; and then father is to be understood here, as 1Ch_2:23,24.
The father of Hebron; not the place so called, but a man, as is evident, because his sons here follow.