Easton's Bible Dictionary: M. G. Easton, M.A., D.D.
Champion of God, used as a proper name to designate the angel who was sent to Daniel (Dan. 8:16) to explain the vision of the ram and the he-goat, and to communicate the prediction of the seventy weeks (Dan. 9:21-27).
He announced also the birth of John the Baptist (Lk. 1:11), and of the Messiah (1:26). He describes himself in the words, "I am Gabriel, who stand in the presence of God" (1:19).