Peri Pascha ("On the Passover") was written by Melito of Sardis between 160 AD and 170 AD. Melito was the Bishop of Sardis, one of the seven churches mentioned in Revelation.
The Third Council of Constantinople (681 AD) picked up where The Definition of Chalcedon left off, addressing whether the two natures of Christ (human and divine) also had two separate wills.
Eutichus taught that Christ's two natures (human and divine) combined to create a third, distinct nature. He taught that Christ's two natures interacted with each other so that He was no longer really divine, and no longer really human. The Council of Chalcedon condemned this teaching in 451.
Trying to find that obscure document for a homework assignment? It just might be here. I've collected a pretty sizeable group of documents from the early Christian church and the rest of the ancient world.
