However, it is absolutely necessary that he who keeps outward fasts also fasts spiritually, that is, he who fasts and prays outwardly must at the same time avoid all sin and unrighteousness and be charitable and diligent in every good work.
By comparison to Great Lent, the Nativity fast may leave us feeling liturgically unmoored. But if we delve into the services of this season, we will find a great wealth of liturgical texts and commemorations that are beautifully and intrinsically tied to the coming birth of our Saviour.