2 occurrences in 2 dictionaries
Reference: Ismaiah
Fausets
A Gibeonite chief of the men who left Saul, the head of their tribe, to join David at Ziklag (1Ch 12:1-4); "a mighty man among the 30 and over the 30."
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Morish
Ismai'ah
A Gibeonite, the head of David's thirty valiant men: he joined David at Ziklag. 1Ch 12:4.