Matthew Henry on 1 Chronicles 2:18–end
The persons mentioned in the former paragraph are most of them such as we read of, and most of them such as we read much of, in other scriptures; but very few of those to whom this paragraph relates are mentioned any where else. It should seem, the tribe of Judah were more full and exact in their genealogies than any other of the tribes, in which we must acknowledge a special providence, for the clearing of the genealogy of Christ. 1. Here we find Bezaleel, who was head-workman in building the tabernacle, Exo 31:2. 2. Hezron, who was the son of Pharez (Ch1 2:5), was the father of all this progeny, his sons, Caleb and Jerahmeel, being very fruitful, and he himself likewise, even in his old ag…
Read the whole note in the consoleJamieson-Fausset-Brown on 1 Chronicles 2:42
the sons of Caleb--(compare Ch1 2:18, Ch1 2:25). The sons here noticed were the fruit of his union with a third wife.
Adam Clarke on 1 Chronicles 2:42
Now the sons of Caleb - This was not Caleb the son of Jephunneh, but Caleb the son of Hezron, Ch1 2:18, Ch1 2:50. But some think that Caleb the son of Hezron was the grandson of Caleb, son of Jephunneh; but this is probably fanciful.
The father of Ziph - "The prince of the Ziphites." - T.
John Gill on 1 Chronicles 2:43
And the sons of Hebron: Korah, and Tappuah, and Rekem, and Shema. One of these, Tappuah, is the name of a city in the tribe of Judah, Joshua 15:34 and there is also Bethtappuah in the same tribe, 1 Chronicles 2:53 which one, or both, might have their name from this man; and Shema also, 1 Chronicles 2:26.
Keil & Delitzsch on 1 Chronicles 2:43
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, Ch1 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, Jos 15:60.