Rehabiah
Rehabiah is a Levite in the line of Moses, traced through Moses' younger son Eliezer. He appears only in the Chronicler's genealogies, and the three notices each mark a different stage in the family's continuation.
Son of Eliezer
The sons of Moses are split into the houses of Gershom and Eliezer, and Eliezer's line narrows to a single child: "And the sons of Eliezer were: Rehabiah the chief; and Eliezer had no other sons; but the sons of Rehabiah were very many" (1Ch 23:17). The line that begins as a single thread broadens immediately at Rehabiah.
In the Levitical roster
When the Levites are organized into courses, Rehabiah's house surfaces again with its own chief: "Of Rehabiah: of the sons of Rehabiah, Isshiah the chief" (1Ch 24:21). The household has grown enough by this point to register as a recognized branch within the divisions of service.
Among the treasuries
The third notice extends the line further down the generations and places it among those connected with the temple treasuries: "And his brothers: of Eliezer [came] Rehabiah his son, and Jeshaiah his son, and Joram his son, and Zichri his son, and Shelomoth his son" (1Ch 26:25). The Eliezer-Rehabiah line, recovered from near-extinction in 1Ch 23, ends up in the chronicler's portrait of the consecrated stores.