Jaasiel
Jaasiel the son of Abner appears in the closing roster of David's tribal officers, where each tribe receives a named ruler. He stands at the head of Benjamin, alongside Iddo the son of Zechariah over half-Manasseh in Gilead.
Tribal Officer for Benjamin
The list pairs each tribe with a single overseer. Jaasiel's notice reads: "of the half-[tribe] of Manasseh in Gilead, Iddo the son of Zechariah: of Benjamin, Jaasiel the son of Abner" (1Ch 27:21). His patronymic ties him back to Saul's commander Abner, placing a man of that house in administrative service under David. The text records the appointment without further narrative.