This is certainly the case at one point, that of the Trisagion.

The same name is sometimes used for the Trisagion.

He was also the author of the bilingual Trisagion.

In the time of Proclus the Trisagion came into use.

Various additions or modifications made to the Trisagion at certain points in history have been the subject of considerable controversy.

Just before the lessons the Trisagion is sung.

The Trisagion rosary (usually called a chaplet) has three groups of nine beads.

The first question is how long the Trinitarians have used the Trisagion and its associated prayers.

The bishop ascends to the high place only during the divine liturgy, at the Trisagion.

The priest silently says the Prayer of the Trisagion.

During the procession all sing the Trisagion.

The litanies of the hour and the appropriate responses are then chanted, followed by the mournful Trisagion.

Funeral - The coffin is carried to the grave accompanied by singing of the Trisagion.

The procession is accompanied by the singing of the Trisagion, typically in a melodic form used at funerals.

Seraphim in his view helped the Deity maintain perfect order and are not limited to chanting the trisagion.

The choir assembled on the raised platform, and, turning eastwards, sang the Trisagion, the whole people listening in silence.

Orthodox Christians still use a burial shroud, usually decorated with a cross and the Trisagion.

The Trisagion prayer is an ancient prayer in Christianity.

The only substantive change is the omission of the clause: "Who was crucified for us" in the Trisagion.

Following this, the chief celebrant "celebrates" the Cross, by blessing the four directions while the Trisagion is said.

Then, the Rite of Proclamation begins with the Trisagion.

It is black in color, and embroidered with crosses, six-winged seraphim, and the text of the Trisagion.

"Alleluia," in place of the Trisagion.

The Trisagion is used principally as a concluding prayer of the Litany in the following form:

Following the Trisagion are the Benedictiones.