Today is the Feast of Saints Michael, Gabriel and Raphael, three of the seven archangels. They are recognized in the Abrahamic faiths: Islam, Judaism and Christianity. An archangel is an angel of high rank. There are few scriptural references to archangels. The New Testament refers to archangels and the Hebrew scripture refers to chief princes.
We can find plenty online about the archangels, how they are described in different religious traditions, and the sacred writings in which they are found. Some branches of Abrahamic faiths identify seven archangels, but the names vary, depending upon the source. Michael, Gabriel and Raphael are always mentioned.
Our tradition tells us that angels are immaterial spirits created by God prior to human creation, to serve as messengers, especially regarding the divine plan of salvation. Christians tend to be most familiar with Gabriel, because of his role in the birth of Jesus of Nazareth, in the Word becoming flesh and dwelling among us.