Easton's Bible Dictionary (1897)
Post; statue, “a servant of the house of Saul” (2 Sam. 9:2), who informed David that Mephibosheth, a son of Jonathan, was alive. He afterwards dealt treacherously toward Mephibosheth, whom he slanderously misrepresented to David.
Smith's Bible Dictionary (1863)
(statue), a servant of Saul whom David made steward of Saul’s son Mephibosheth. (2 Samuel 9:2-18; 16:1-4; 19:17,29) [Mephibosheth] (B.C. 1023.)
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
ZI'BA (statue), a servant of Saul, 2 Sam 19:17, whom David appointed a sort of steward to Mephibosheth. 2 Sam 9:2-12.
Hitchcock's Bible Names (1869)
army; fight; strength