Ad Afros Epistola Synodica

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.