Angel Gabriel is the first witness, he was a righteous messenger from the King or God who brought messages and helped prepared for the birth of the Christ. In Hebrew the word “angel” is Malak which means messenger from the King. Gabriel means God is my strong man. He “stands next in authority to Adam in the Priesthood” (Teachings of the Prophet Joseph Smith, p. 157), and that he holds the keys of the “restoration of all things” (D&C 27:6–7.)
Gabriel made his initial appearance in the temple to Zacharias, a faithful priest, who performed a ritual for his nation—burning incense on the altar within the Holy Place.
In response to his prayer, an “angel of the Lord” appeared before Zacharias, standing on the right side of the altar of incense and identified himself as Gabriel, one who stood “in the presence of God.” (Luke 1:11, 19.) Gabriel tells him of the good news and gives him instructions.
Gabriel also visits Mary and Joseph to help prepare the way for the birth of Christ.