Nadab (nâ'dăb). spontaneous, liberal. 1. The eldest son of Aaron. Exodus 6:28; Exodus 24:1; Exodus 24:9; Exodus 28:1; Leviticus 10:1; Numbers 3:2; Numbers 3:4; Numbers 26:60-61; 1 Chronicles 6:3; 1 Chronicles 24:1; 1 Chronicles 2:2. The son and successor of Jeroboam I., king of Israel, whose sinful conduct he imitated. He reigned two years, 954-953 b.c., and while engaged at the siege of Gibbethon he and all his house were slain by Baasha. 1 Kings 14:20; 1 Kings 15:25-31. 3. One of Judah's posterity. 1 Chronicles 2:28; 1 Chronicles 2:30. 4. A Benjamite, one of the family from which Saul descended. 1 Chronicles 8:30; 1 Chronicles 9:36.