Exegetical and Hermeneutical Commentary of 1 Chronicles 7:39
And the sons of Ulla; Arah, and Haniel, and Rezia.
Ulla; another son of Jether, as may be gathered by the course of the genealogy, though he be not expressed with his brethren, 1Ch 7:38. See the like defect 1Ch 7:18,34.
Fuente: English Annotations on the Holy Bible by Matthew Poole
And the sons of Ulla,…. Who either was the son of Ara, last mentioned, or another son of Jether:
Arah, and Haniel, and Rezia; here ends the genealogy of Asher; the last of the tribes; Dan and Zebulun not being reckoned at all.
Fuente: John Gill’s Exposition of the Entire Bible
(39) The sons of Ulla.Apparently Ulla is not connected with the foregoing genealogy. But he seems to be the same as Ara (1Ch. 7:38). Ar is a very curious form, and may be due to a copyists eye having wandered to Be-era at the end of last verse; Ull is intelligible, and probably correct. If the identification be allowed, we get a complete concatenation from 1Ch. 7:30-39.
Arah is in Hebrew quite different from Ara.