The angel could not touch the fire's coal with his fingers, but just brought it close to Isaiah's mouth. The angel did not hold it, and Isaiah did not consume it, but Our Lord has allowed us to do both.
- St. Ephrem of Syria (306-373AD) on the Eucharist
He who sees the Church looks directly at Christ -- Christ building and increasing by the addition of the elect. also The establishment of the Church is a re-creation of the world.
- St. Gregory of Nyssa (330-395AD) on the Catholic Church