(from Sozomen, Ecclesiastical History, 2, 27. LPNF, ser. 2, vol. 2, 277.
Arius and Euzoius, presbyters, to Constantine, our most pious emperor and most beloved of God.
According as your piety, beloved of God, commanded, O sovereign emperor, we here furnish a written statement of our own faith, and we protest before God that we, and all those who are with us, believe what is here set forth.
We believe in one God, the Father Almighty, and in His Son the Lord Jesus Christ, who was begoten from Him before all ages, God the Word, by whom all things were made, whether things in heaven or on earth; He came and took upon Him flesh, suffered and rose again, and ascended into heaven, whence He will again come to judge the quick and the dead.
We believe in the Holy Ghost, in the resurrection of the body, in the life to come, in the kingdom of heaven, and in one Catholic Church of God, established throughout the earth. We have received this faith from the Holy Gospels, in which the Lord says to his disciples, "Go forth and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost." If we do not so believe this, and if we do not truly receive the doctrines concerning the Father, the Son, and the Holy Ghost, as they are taught by the whole Catholic Church and by the sacred Scriptures, as we believe in every point, let God be our judge, both now and in the day which is to come. Wherefore we appeal to your piety, O our emperor most beloved of God, that, as we are enrolled among the members of the clergy, and as we hold the faith and thought of the Church and of the sacred Scriptures, we may be openly reconciled to our mother, the Church, through your peacemaking and pious piety; so that useless questions and disputes may be cast aside, and that we and the Church may dwell together in peace, and we all in common may offer the customary prayer for your peaceful and pious empire and for your entire family.