|Easton's Bible Dictionary|
Made by God, one of David's body-guard, the son of Abner (1 Chronicles 27:21), called Jasiel in 1 Chronicles 11:47.
Int. Standard Bible Encyclopedia
ja-a'-si-el (ya`asi'el, "God makes" (?)): In 1 Chronicles 11:47, a Mezobaite, one of "the mighty men of the armies," and probably = "Jaasiel" of 1 Chronicles 27:21, "the son of Abner," and a Benjamite tribal prince of David's. the King James Version "Jasiel."
Jaasiel (2 Occurrences)
1 Chronicles 11:47 Eliel, and Obed, and Jaasiel the Mezobaite. (WEB JPS ASV BBE DBY YLT NAS NIV)
1 Chronicles 27:21 of the half-tribe of Manasseh in Gilead, Iddo the son of Zechariah: of Benjamin, Jaasiel the son of Abner: (WEB KJV JPS ASV BBE DBY WBS YLT NAS NIV)