And after that Hezron was dead in (h) Calebephratah, then Abiah Hezron's wife bare him Ashur the (i) father of Tekoa.
(h) Which was a town named for the husband and wife, also called Bethlehem Ephratah.
(i) Meaning, the chief and prince.

And after that Hezron was dead in Calebephratah,.... Supposed to be the same with Bethlehem; and was so called, both from Caleb the son of Hezron, and Ephrath his wife, 1-Chronicles 2:19,
then Abiah, Hezron's wife, bare him Ashur the father of Tekoa; being left with child by him at his death; the whole verse is paraphrased thus in the Targum,"and after Hezron died in the house of Caleb his son in Ephrath, the wife of Hezron the daughter of Machir was left with child, and she bare to him after his death Ashur the prince of the Tekoites;''whose son gave name very probably to the city of Tekoa, 2-Samuel 14:2.

Caleb-ephratah--so called from uniting the names of husband and wife (1-Chronicles 2:19), and supposed to be the same as was afterwards called Beth-lehem-ephratah.
Ashur, the father of Tekoa-- (2-Samuel 14:2-4). He is called the father, either from his being the first founder, or perhaps the ruler, of the city.

After the death of Hezron there was born to him by his wife Abiah (the third wife, cf. 1-Chronicles 2:9 and 1-Chronicles 2:21) another son, Ashur, the father of Tekoa, whose descendants are enumerated in 1-Chronicles 4:5-7. Hezron's death took place אפרתה בּכלב, "in Caleb Ephrathah." This expression is obscure. According to 1-Samuel 30:14, a part of the Negeb (south country) of Judah was called Negeb Caleb, as it belonged to the family of Caleb. According to this analogy, the town or village in which Caleb dwelt with his wife Ephrath may have been called Caleb of Ephrathah, if Ephrath had brought this place as a dower to Caleb, as in the case mentioned in Joshua 15:18. Ephrathah, or Ephrath, was the ancient name of Bethlehem (Genesis 33:19; Genesis 48:1), and with it the name of Caleb's wife Ephrath (1-Chronicles 2:19) is unquestionably connected; probably she was so called after her birthplace. If this supposition be well founded, then Caleb of Ephrathah would be the little town of Bethlehem. Ashur is called father (אבי) of Tekoa, i.e., lord and prince, as the chief of the inhabitants of Tekoa, now Tekua, two hours south of Bethlehem (vide on Joshua 15:59).
1-Chronicles 2:25-41
The family of Jerahmeel, the first-born of Hezron, which inhabited a part of the Negeb of Judah called after him the south of the Jerahmeelites (1-Samuel 27:10; 1-Samuel 30:29).

Tekoa - A known place whose father he is called, because he was either the progenitor of the people inhabiting there: or, their prince and ruler: or, the builder of the city.