Order of Preparation

Through the prayers of our holy fathers, O Lord Jesus Christ our God, have mercy on us. Amen.The preparation consists of: O Heavenly King; Trisagion; Our Father; Lord have mercy, twelve times; Glory... Both now...; O come let us worship, thrice; then Psalms 22, 23, and 115; then Psalm 50; then the Canon for Holy Communion; then the following Prayers before Holy Communion.