My LORD’s BibleApostolic Constitutions, Book VIII 14
1Now we have received the precious body and the precious blood of Christ, let us give thanks to Him who has thought us worthy to partake of these His holy mysteries; and let us beseech Him that it may not be to us for condemnation, but for salvation, to the advantage of soul and body, to the preservation of piety, to the remission of sins, and to the life of the world to come. Let us arise, and by the grace of Christ let us dedicate ourselves to God, to the only unbegotten God, and to His Christ. And let the bishop give thanks:—