Brown Driver Briggs

 Nadab = "generous"
1. eldest son of Aaron by Elisheba; struck dead before the sanctuary
in the wilderness for kindling the censers with strange fire
2. son of king Jeroboam I of the northern kingdom of Israel and king
of Israel for 2 years before being slain by Baasha
3. a Jerahmeelite, son of Shammai, of the tribe of Judah
4. a son of Gibeon of the tribe of Benjamin