Editing Gloria in excelsis Deo (section)

===Byzantine Rite===
In the usage of the [[Eastern Orthodox Church]] and those [[Eastern Catholic Churches]] which follow the [[Byzantine Rite]], the Great Doxology is one of the high points of the festal Matins service. The [[priest]] puts on his [[phelonion]] (chasuble). When it comes time for the Great Doxology the [[deacon]] opens the [[Holy Doors]], and the priest raises his hands [[orans]] and exclaims: "Glory to Thee, Who hast shown us the [[Light of the World (Jesus)|Light]]!", and the choir begins chanting the Doxology, while all of the [[oil lamp]]s and candles in the [[temple]] are lit. The Great Doxology concludes with the chanting of the [[Trisagion]] and leads into the chanting of the [[Troparion]] of the Day. If the bishop is present he vests in his full [[pontifical vestments]] for the Great Doxology, and the [[subdeacons]] stand behind the [[Holy Table]] (altar) holding the lit [[dikirion and trikirion]].

When the Lesser Doxology is called for, it is simply said by the [[reader (liturgy)|reader]], the priest does not put on his phelonion, the Holy Doors remain closed and no lamps or candles are lit. The Lesser Doxology does not end with the Trisagion and is followed by an [[ektenia]] (litany).

In [[liturgical calendar]]s it is symbolized by a [[Rubric|red]] mis-shapen semicircle (with the opening to one side) with three dots inside.