Synaxis of the Archangel Michael and the other Bodiless Powers of Heaven (Eastern Orthodox Church)

A synaxis is a liturgical assembly in Eastern Christianity.

Michael, also called Saint Michael the Archangel, Archangel Michael and Saint Michael the Taxiarch is an archangel and the warrior of God in Christianity, Judaism, and Islam. The earliest surviving mentions of his name are in third- and second-century BC Jewish works, often but not always apocalyptic, where he is the chief of the angels and archangels, and he is the guardian prince of Israel and is responsible for the care of the people of Israel. Christianity conserved nearly all the Jewish traditions concerning him, and he is mentioned explicitly in Revelation 12:7–12, where he does battle with Satan, and in the Epistle of Jude, where the archangel and the devil dispute over the body of Moses.

In the angelology of different religions, a hierarchy of angels is a ranking system of angels. The higher ranking angels have greater power and authority than lower ones, and different ranks have differences in appearance, such as varying numbers of wings or faces.

The Eastern Orthodox Church, officially the Orthodox Catholic Church, and also called the Greek Orthodox Church or simply the Orthodox Church, is one of the three major doctrinal and jurisdictional groups of Christianity, with approximately 230 million baptised members. It operates as a communion of autocephalous churches, each governed by its bishops via local synods. The church has no central doctrinal or governmental authority analogous to the pope of the Catholic Church. Nevertheless, the Ecumenical Patriarch of Constantinople is recognised by them as primus inter pares, a title held by the patriarch of Rome prior to 1054. As one of the oldest surviving religious institutions in the world, the Eastern Orthodox Church has played an especially prominent role in the history and culture of Eastern and Southeastern Europe. Since 2018, there has been an ongoing schism between Constantinople and Moscow, with the two not in full communion with each other.