Apostolic Constitutions, Book VIII 40
1We give thanks to You, O Lord Almighty, the Creator of the whole world, and its Preserver, through Your only begotten Son Jesus Christ our Lord, for the first-fruits which are offered to You, not in such a manner as we ought, but as we are able. For what man is there that can worthily give You thanks for those things You have given them to partake of? The God of Abraham, and of Isaac, and of Jacob, and of all the saints, who made all things fruitful by Your word, and commanded the earth to bring forth various fruits for our rejoicing and our food; who hast given to the duller and more sheepish sort of creatures juices — herbs to them that feed on herbs, and to some flesh, to others seeds, but to us grain, as advantageous and proper food, and many other things — some for our necessities, some for our health, and some for our pleasure. On all these accounts, therefore, are You worthy of exalted hymns of praise for Your beneficence by Christ, through whom glory, honour, and worship be to You, in the Holy Spirit, forever. Amen. Concerning those that are at rest in Christ: After the bidding prayer, that we may not repeat it again, the deacon shall add as follows:—