Come together in common through grace, individually, in one faith, and in Jesus Christ, who was of the seed of David according to the flesh, both the Son of Man and the Son of God. In this way you will obey the bishop and the presbytery with an undivided mind, breaking one and the same bread, which is the medicine of immortality and the antidote to prevent us from dying, enabling us to live forever in Jesus Christ.
SAINT IGNATIUS OF ANTIOCH
We call this food Eucharist…. Not as common bread nor common drink do we receive these; but since Jesus Christ our Savior was made incarnate by the word of God and had both flesh and blood for our salvation, so too… the food which has been made into the Eucharist…is both the flesh and the blood of that incarnated Jesus.
SAINT JUSTIN MARTYR First Apology