Caleb the son of Hur - Hur was the son, not the father, of Caleb 1 Chronicles 2:19. The text should perhaps be read: "These (the list in 1 Chronicles 2:42-49) were the sons of Caleb. The sons of Hur, the first-born of Ephratah, were Shobal, etc."

These were the sons of Caleb the son of Hur, the firstborn of Ephratah,.... This is another Caleb, the grandson of Caleb the son of Hezron, called after his name; he was the son of Hur, the firstborn of his wife Ephratah, 1 Chronicles 2:19.

Shobal the father of Kirjathjearim: of the inhabitants of that place; they sprung from him; or, as the Targum, he was prince of Kirjathjearim, a city in the tribe of Judah, Joshua 15:60.

The families descended from Caleb through his son Hur. - 1 Chronicles 2:50. The superscription, "These are the sons (descendants) of Caleb," is more accurately defined by the addition, "the son of Hur, the first-born of Ephratah;" and by this definition the following lists of Caleb's descendants are limited to the families descended from his son Hur. That the words וגו בּן־חוּר are to be so understood, and not as apposition to כּלב, "Caleb the son of Hur," is shown by 1 Chronicles 2:19, according to which Hur is a son of Caleb and Ephrath. On that account, too, the relationship of Hur to Caleb is not given here; it is presupposed as known from 1 Chronicles 2:19. A famous descendant of Hur has already been mentioned in 1 Chronicles 2:20, viz., Bezaleel the son of Uri. Here, in 1 Chronicles 2:50 and 1 Chronicles 2:51, three sons of Hur are named, Shobal, Salma, and Hareph, with the families descended from the first two. All information is wanting as to whether these sons of Hur were brothers of Uri, or his cousins in nearer or remoter degree, as indeed is every means of a more accurate determination of the degrees of relationship. Both בּן and הוליד in genealogies mark only descent in a straight line, while intermediate members of a family are often omitted in the lists. Instead of בּן־חוּר, בּני־חוּר might have been expected, as two sons are mentioned. The singular בּן shows that the words are not to be fused with the following into one sentence, but, as the Masoretic punctuation also shows, are meant for a superscription, after which the names to be enumerated are ranged without any more intimate logical connection. For the three names are not connected by the w copul. They stand thus: "sons of Hur, the first-born of Ephratah; Shobal...Salma...Hareph." Shobal is called father of Kirjath-jearim, now Kureyet el Enab (see on Joshua 9:17). Salma, father of Bethlehem, the birth-place of David and Christ. This Salma is, however, not the same person as Salma mentioned in 1 Chronicles 2:11 and Ruth 4:20 among the ancestors of David; for the latter belonged to the family of Ram, the former to the family of Caleb. Hareph is called the father of Beth-Geder, which is certainly not the same place as Gedera, Joshua 15:36, which lay in the Shephelah, but is probably identical with Gedor in the hill country, Joshua 15:58, west of the road which leads from Hebron to Jerusalem (vide on 1 Chronicles 12:4). Nothing further is told of Hareph, but in the following verses further descendants of both the other sons of Hur are enumerated.

These were the sons of Caleb the son of Hur, the firstborn of Ephratah; Shobal the father of Kirjathjearim.

Ephratah: also called, Ephreth

2:1-55 Genealogies. - We are now come to the register of the children of Israel, that distinguished people, who were to dwell alone, and not be reckoned among the nations. But now, in Christ, all are welcome to his salvation who come to him; all have equal privileges according to their faith in him, their love and devotedness to him. All that is truly valuable consists in the favour, peace, and image of God, and a life spent to his glory, in promoting the welfare of our fellow-creatures.