Extended Strong's Hebrew Lexicon (Brown-Driver-Briggs based)
Joab
Usage: A man living at the time of United Monarchy, first mentioned at 1Sa.26.6; his mother was Zeruiah (H6870); brother of: Abishai (H0052) and Asahel (H6214) § Joab = "Jehovah is father" 1) son of David's sister Zeruiah and general of David's army 2) a Judaite descendant of Kenaz 3) a post exilic family