1 Chronicles 2:46

“And Ephah Caleb’s concubine bare Haran, and Moza, and Gazez, etc.] An half-wife, or secondary wife; for though this man seems not to have had more wives than one at a time, yet he had concubines with them; we read of another after this, if not a third: and Haran begat Gazez; whom he so named after his brother.”

“Caleb's: Ch1 2:18, Ch1 2:19, Ch1 2:48 1 Chronicles 2:48”

“Descendants of Caleb by two concubines. - The name עיפה occurs in Ch1 2:47 and Ch1 1:33 as a man's name. Caleb's concubine of this name bore three sons: Haran, of whom nothing further is known; Moza, which, though in Jos 18:26 it is the name of a Benjamite town, is not necessarily on that account the name of a town here; and Gazez, unknown, perhaps a grandson of Caleb, especially if the clause "Haran begat Gazez" be merely an explanatory addition. But Haran may also have given to his son the name of his younger brother, so that a son and grandson of Caleb may have borne the same name. Ch1 2:47 The genealogical connection of the names in this verse is entirely wanting; for Jahdai, of whom six…”