A Confession of the Holy Trinity

The merciful Trinity is one divinity, so that it may be known through the sacrament: unity is from him who is holy, and spirit: from whom is he who is, and the only-begotten thus subsisting of the divine nature, of light, of spirit, from himself, himself through nature, through the substance of majesty, of power, of virtue, of divine light. One spirit in two, and each in the same: the Father in the Son, the Son in the Father, in the Holy Spirit. Thus in three persons we confess the body of foreknowledge, which encompasses all things above all things. In this mystery, therefore, we believe that all things arose from nothing existing, which mystery the human mind cannot conceive, nor oratorical tongue narrate, nor the volumes of libraries of diffuse speech, even if books should fill the whole world, could the inenarrable divine knowledge be narrated: he who is unspeakable can in no way be described, nor can either word or the proper substance of his divinity be encompassed.

He who is the fount of divine light, of light, of his own substance, of nature. Let the oratorical tongue be silent, for speech fails concerning the unspeakable: when the human mind has finished speaking of the divine majesty, then it begins. But how great the divine clemency is, no one knows, save he who begot; and no one has learned the secrets of the Father, save he who, by nature, has no beginning of birth. Let therefore all meekness and modesty of the learned turn to the prophet, and presume upon the Lord's authority, saying: I believed, therefore have I spoken. But that through the mystery there may be a simple profession, as the foundation of the Church, made solid by apostolic authority, let the following predestination presume, saying: For the rest let no one trouble me; I believe in Christ, and him crucified.

For when one confesses the Son of Man, one confesses also the Holy Spirit: because from the Holy Spirit and the Virgin Mary the mediator is born; when one confesses the firstborn, it is necessary, concerning the only-begotten, who bears witness, to confess that he is one and alone without origin: the third person one confesses as the Father, existing of the divine nature, of light. The Spirit, as I said, who according to the divine nature, as I said above, is one in two, and each in the same; the Father in the Son, the Son in the Father, in the Holy Spirit, in the holy Church. Now and unto the immortal ages of ages. Amen.