Alexander of Alexandria

In his own words on Galatians

• Galatians 1:8

  These are the apostolic doctrines of the Church, for which also we die, esteeming those but little who would compel us to forswear them, even if they would force us by tortures, and not casting away our hope in them. To these Arius and Achilles opposing themselves, and those who with them are the enemies of the truth, have been expelled from the Church, as being aliens from our holy doctrine, according to the blessed Paul, who says, "If any man preach any other gospel unto you than that ye have received, let him be accursed; even though he feign himself an angel from heaven."

  Epistles on the Arian Heresy - To Alexander, Bishop of the City of Constantinople