Boyd’s Bible Dictionary:
(son of the right hand). (1) Youngest of Jacob’s children. First named Benoni, afterward Benjamin (Gen. 35:16-18). Beloved by Jacob (Gen. 42); visited Egypt (Gen. 43); tribe distinguished as Jacob prophesied (Gen. 49:27; 1 Sam. 20:20,36; 2 Sam. 1:22; Judg. 20:16; 1 Chron. 8:40). Their allotment described (Josh. 18:11-28). Tribe awfully visited (Judg. 20-21). (2) Head of a Benjamite family (1 Chron. 7:10). (3) A returned captive (Ezra 10:32).
Concise Bible Dictionary:
1. Son of Bilhan, descendant of Benjamin (1 Chron. 7:10).
2, 3, 4. Three who returned from exile (Ezra 10:32; Neh. 3:23; Neh. 12:34).
Jackson’s Dictionary of Scripture Proper Names:
son of the right hand