Eshek
Eshek appears once in scripture, named within the genealogical records of the tribe of Benjamin descended from Saul.
A Benjamite
The Chronicler traces a line of Saul's house and pauses to list Eshek's sons: "And the sons of Eshek his brother: Ulam his firstborn, Jeush the second, and Eliphelet the third" (1Ch 8:39). Eshek is identified as a brother within this Benjamite branch, his three named sons preserving his place in the genealogy without further narrative detail.