This prayer from St. John Chrysostom’s Liturgy comes at the end of the service. It is a fitting summation of the Church’s prayer before God.
Blessing those that bless thee, O Lord, and sanctifying those that trust in thee, save thy people and bless thine inheritance, preserve the fullness of thy Church, sanctify those that love the beauty of thy house. Glorify them in return by thy divine power, and forsake us not that hope in thee. Give peace to thy world, to thy churches, to the priests, to all civil authorities, and to all thy people. For every good gift, and every perfect gift is from above, and cometh down from thee, the Father of lights, and unto thee do we send up glory, thanksgiving, and worship, to the Father, and to the Son, and to the Holy Spirit, now and ever, and unto ages of ages. Amen.