In Abrahamic religions, Gabriel (God is my strength) is an angel who typically serves as a messenger sent from God to certain people.
In the Bible, Gabriel is mentioned in both the Old and New Testament. In the Old Testament, he appeared to the prophet Daniel, delivering explanations of Daniel’s visions (Daniel 8:15–26, 9:21–27). In the Gospel of Luke, Gabriel appeared to Zecharias, and to the virgin Mary foretelling the births of John the Baptist and Jesus, respectively (Luke 1:11–38). In the Book of Daniel, he is referred to as “the man Gabriel”, while in the Book of Luke, Gabriel is referred to as “an angel of the Lord” (Luke 1:11). Gabriel is not called an archangel in the Bible, but is so called in Intertestamental period sources like the Book of Enoch. In the Roman Catholic, Anglican, Lutheran, Eastern and Oriental Orthodox churches, the archangels Michael, Raphael, and Gabriel are also referred to as saints.
In Islam, Gabriel (Jibra’il) is considered one of the four archangels whom God sent with his divine message to various prophets, including Muhammad. The 96th chapter of the Quran, sura Al-Alaq, is believed by Muslims to be the first surah revealed by Gabriel to Muhammad.