All His angels worthily praise Him, for He is their everlasting food, nourishing them with an incorruptible feast. He is the Word of God, by whose life they live, by whose eternity they live forever, by whose goodness they live happily forever. They praise Him worthily, as God with God, and they render glory to God on high. May we, ‘his people and the sheep of his hand,’ reconciled to Him by our good will, merit peace in consideration of the limited measure of our weakness. For these words to which the angels themselves gave utterance in jubilation at the birth of our Saviour are their daily tribute: ‘Glory to God in the highest, and on earth peace among men of good will.’ Therefore, they praise Him duly: let us praise Him in obedience. They are His messengers; we, His sheep. He filled their table in heaven; He filled our manger on earth. He is the fullness of their table because ‘in the beginning was the Word, and the Word was with God; and the Word was God.’ He is the fullness of our manger because ‘the Word was made flesh, and dwelt among us.’ so that man might eat the Bread of angels the Creator of the angels became man. The angels praise Him by living; we, by believing; they by enjoying, we by seeking; they by obtaining, we by striving to obtain; they by entering, we by knocking.

Saint Augustine