St. Ignatius of Antioch on the Real Presence

"[The Docetics] abstain from the Eucharist and from prayer, because they do not admit that the Eucharist is the flesh of our Savior Jesus Christ, the flesh which suffered for our sins and which the Father, in His graciousness, raised from the dead. And so denying the gift of God, these men perish in their disputatiousness. It would be better for them to love and so to rise again. (It is well for you to keep away from such persons and not even to speak of them in private or in public. It is better to keep to the prophets and especially to the Gospel in which the passion is presented and the resurrection is an accomplished fact.)" (Letter to the Smyrnaeans ~ 107 AD)

image from the 'Public domain' via wikimedia commons. Ignatius of Antioch