Athanasius Ad Afros 9-11

9. The honest repudiation of Arianism involves the acceptance of the Nicene test.

This then the Fathers perceived when they wrote that the Son was coessential with the Father, and anathematised those who say that the Son is of a different Subsistence : not inventing phrases for themselves, but learning in their turn, as we said, from the Fathers who had been before them. But after the above proof, their Ariminian Synod is superfluous, as well as any other synod cited by them as touching the Faith. For that of Nicæa is sufficient, agreeing as it does with the ancient bishops also, in which too their fathers signed, whom they ought to respect, on pain of being thought anything but Christians. But if even after such proofs, and after the testimony of the ancient bishops, and the signature of their own Fathers, they pretend as if in ignorance to be alarmed at the phrase ‘coessential,’ then let them say and hold, in simpler terms and truly, that the Son is Son by nature, and anathematise as the synod enjoined those who say that the Son of God is a Creature or a thing made, or of nothing, or that there was once a time when He was not, and that He is mutable and liable to change, and of another Subsistence. And so let them escape the Arian heresy. And we are confident that in sincerely anathematising these views, they ipso facto confess that the Son is of the Father’s Essence, and coessential with Him. For this is why the Fathers, having said that the Son was coessential, straightway added, ‘but those who say that He is a creature, or made, or of nothing, or that there was once a time when He was not,’ the Catholic Church anathematises: namely in order that by this means they might make it known that these things are meant by the word ‘coessential.’ And the meaning ‘Coessential’ is known from the Son not being a Creature or thing made: and because he that says ‘coessential’ does not hold that the Word is a Creature: and he that anathematises the above views, at the same time holds that the Son is coessential with the Father; and he that calls Him ‘coessential,’ calls the Son of God genuinely and truly so; and he that calls Him genuinely Son understands the texts, ‘I and the Father are one,’ and ‘he that has seen Me has seen the Father. ‘

10. Purpose of this Letter; warning against Auxentius of Milan.

Now it would be proper to write this at greater length. But since we write to you who know, we have dictated it concisely, praying that among all the bond of peace might be preserved, and that all in the Catholic Church should say and hold the same thing. And we are not meaning to teach, but to put you in mind. Nor is it only ourselves that write, but all the bishops of Egypt and the Libyas, some ninety in number. For we all are of one mind in this, and we always sign for one another if any chance not to be present. Such being our state of mind, since we happened to be assembled, we wrote, both to our beloved Damasus, bishop of the Great Rome, giving an account of Auxentius who has intruded upon the church at Milan; namely that he not only shares the Arian heresy, but is also accused of many offenses, which he committed with Gregory , the sharer of his impiety; and while expressing our surprise that so far he has not been deposed and expelled from the Church, we thanked [Damasus] for his piety and that of those who assembled at the Great Rome, in that by expelling Ursacius and Valens, and those who hold with them, they preserved the harmony of the Catholic Church. Which we pray may be preserved also among you, and therefore entreat you not to tolerate, as we said above, those who put forward a host of synods held concerning the Faith, at Ariminum, at Sirmium, in Isauria, in Thrace, those in Constantinople, and the many irregular ones in Antioch. But let the Faith confessed by the Fathers at Nicæa alone hold good among you, at which all the fathers, including those of the men who now are fighting against it, were present, as we said above, and signed: in order that of us too the Apostle may say, ‘Now I praise you that you remember me in all things, and as I handed the traditions to you, so hold them fast 1 Corinthians 11:2.’

11. Godhead of the Spirit also involved in the Nicene Creed.

For this Synod of Nicæa is in truth a proscription of every heresy. It also upsets those who blaspheme the Holy Spirit, and call Him a Creature. For the Fathers, after speaking of the faith in the Son, straightway added, ‘And we believe in the Holy Ghost,’ in order that by confessing perfectly and fully the faith in the Holy Trinity they might make known the exact form of the Faith of Christ, and the teaching of the Catholic Church. For it is made clear both among you and among all, and no Christian can have a doubtful mind on the point, that our faith is not in the Creature, but in one God, Father Almighty, maker of all things visible and invisible: and in one Lord Jesus Christ His Only-begotten Son, and in one Holy Ghost; one God, known in the holy and perfect Trinity, baptized into which, and in it united to the Deity, we believe that we have also inherited the kingdom of the heavens, in Christ Jesus our Lord, through whom to the Father be the glory and the power for ever and ever. Amen.