How great will be that felicity [of the City of God in its perpetual Sabbath], where there will be no evil, where no good will be withheld, where there will be leisure for the praises of God, who will be all in all! All the limbs and organs of the body, no longer subject to decay, the parts which we now see assigned to various essential functions, will be freed from all such constraint, since full, secure, certain and eternal felicity will have displaced necessity; and all those parts will contribute to the praise of God. I am not rash enough to attempt to describe what the movements of such bodies will be in that life, for it is quite beyond my power of imagination. However, everything there will be lovely in its form, and lovely in motion and in rest, for anything that is not lovely will be excluded. The reward of virtue will be God himself, who gave the virtue, together with the promise of himself, the best and greatest of all possible promises. He will be the goal of all our longings; and we shall see him for ever; we shall love him without surfeit; we shall praise him without wearying. This will be the duty, the delight, the activity of all, shared by all who share the life of eternity.

—City of God 22.30