Apostolic Constitutions, Book VII 26
1After the participation, give thanks in this manner: We thank you, O God and Father of Jesus our Saviour, for Your holy name, which You have made to inhabit among us; and that knowledge, faith, love, and immortality which You have given us through Your Son Jesus. You, O Almighty Lord, the God of the universe, hast created the world, and the things that are therein, by Him; and hast planted a law in our souls, and beforehand prepared things for the convenience of men. O God of our holy and blameless fathers, Abraham, and Isaac, and Jacob, Your faithful servants; You, O God, who art powerful, faithful, and true, and without deceit in Your promises; who sent upon earth Jesus Your Christ to live with men, as a man, when He was God the Word, and man, to take away error by the roots: even now, through Him, be mindful of this Your holy Church, which You have purchased with the precious blood of Your Christ, and deliver it from all evil, and perfect it in Your love and Your truth, and gather us all together into Your kingdom which You have prepared. Let this Your kingdom come. Hosanna to the Son of David. Blessed be He that comes in the name of the Lord — God the Lord, who was manifested to us in the flesh. If any one be holy, let him draw near; but if any one be not such, let him become such by repentance. Permit also to your presbyters to give thanks.