The Trisagion Prayers are a set of ancient prayers that begin each service of the Daily Cycle. They are also commonly used to begin one's private prayers.
+Glory to Thee, our God, Glory to Thee.
O Heavenly King, Comforter, the Spirit of Truth, Who art everywhere present and fillest all things, the Treasury of good things and Giver of life: Come, and abide in us, and cleanse us from every stain, and save our souls, O Good One.
+Holy God, Holy Mighty, Holy Immortal: have mercy on us. (3 times)
+Glory to the Father, and to the Son, and to the Holy Spirit, both now and ever, and unto the ages of ages. Amen.
All-Holy Trinity, have mercy on us. Lord, cleanse us from our sins. Master, pardon our iniquities. Holy God, visit and heal our infirmities for Thy name's sake.
Lord, have mercy. (3 times)
+Glory to the Father, and to the Son, and to the Holy Spirit, both now and ever, and unto the ages of ages.
Our Father, who art in Heaven, hallowed be Thy name. Thy Kingdom come, Thy will be done, on earth as it is in heaven. Give us this day our daily bread, and forgive us our trespasses as we forgive those who trespass against us; and lead us not into temptation, but deliver us from the evil one.
For Thine is the Kingdom, and the power, and the glory, of the +Father, and of the Son, and of the Holy Spirit, now and ever and unto ages of ages. Amen.