Easton's Bible Dictionary
He announced also the birth of John the Baptist (Luke 1:11 ), and of the Messiah (26). He describes himself in the words, "I am Gabriel, who stand in the presence of God" (1:19).
These dictionary topics are from M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition, published by Thomas Nelson, 1897. Public Domain.
Easton, Matthew George. Entry for 'Gabriel'. Easton's Bible Dictionary. https://www.studylight.org/dictionaries/eng/ebd/g/gabriel.html. 1897.