3 occurrences in 3 dictionaries
Reference: Ithrite
Fausets
Designation of two of David's guard, Ira and Gareb (2Sa 23:38; 1Ch 11:40; 2:53). Jattir was in the mountains of Judah, one of David's "haunts," where he had "friends" to whom he sent of the Amalekite spoils (1Sa 30:26-27,31).
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Smith
Ith'rite
(belonging to Jether), The, the designation of two of the members of David's guard, Ira and Gareb.
They may have come from Jattir, in the mountains of Judah. (B.C 1046.)