1 Chronicles 4:8

“And Coz, etc.] Another son of Helah, and brother of the before mentioned: begat Anub, and Zobebah; of whom we nowhere else read: and the families of Aharhel, the son of Harum; these were of the posterity of Coz; the Targum is, “and the family of Aharhel, this is Hur, the firstborn of Miriam;” which is not at all probable.”

“Probably Jabez should be mentioned here; as otherwise he is as a consequent without an antecedent. 1 Chronicles 4:9”

“Ch1 4:8-10 contain a fragment, the connection of which with the sons of Judah mentioned in 1 Chron 2 is not clear. Coz begat Anub, etc. The name קוץ occurs only here; elsewhere only הקּוץ is found, of a Levite, Ch1 24:10, cf. Ezr 2:61 and Neh 3:4 \- in the latter passage without any statement as to the tribe to which the sons of Hakkoz belonged. The names of the sons begotten by Coz, Ch1 4:8, do not occur elsewhere. The same is to be said of Jabez, of whom we know nothing beyond what is communicated in Ch1 4:9 and Ch1 4:10. The word יעבּץ denotes in Ch1 2:55 a town or village which is quite unknown to us; but whether our Jabez were father (lord) of this town cannot be determined. If there be…”