Jaasiel

Made by God, one of David's body-guard, the son of Abner (1 Chronicles 27:21), called Jasiel in 1 Chronicles 11:47.

Source: Easton's Bible Dictionary
Jaasiel

(whom God comforts ), son of the great Abner. (1 Chronicles 27:21) (B.C. 1046-1014.)

Source: Smith's Bible Dictionary