The Institutes, Book 2
The Night Prayers and Psalms
Belted, then, with this twofold belt we have spoken of, the soldier of Christ should next learn the system of the canonical prayers and psalms, which the holy fathers in the East arranged long ago. As for what these prayers are like, however, and how we can pray “without ceasing,” as the apostle directs, we will deal with that in its proper place, as the Lord enables us, when we begin to relate the Conferences of the Elders.