De theologia

Of the same. We are taught the doctrine concerning the Trinity not so much from divine Scripture as from natural consequence. Of the same, on theology. In theology, one God is glorified and worshipped in three hypostases: one divinity, one nature, one essence, one power and authority, one will; but three persons and three hypostases, each with its own property. For the property of the Father is to be unbegotten; the property of the Son is to be begotten; and the property of the Spirit is to be procession. God the Father is without beginning; God the Son is co-beginning, even if from the Father; God the Holy Spirit is co-eternal and co-beginning, proceeding from the Father, not begotten in a filial manner as the Son, but by way of procession. The three are one in divinity, even in three hypostases. In the economy of God and Word of God, who by the good will of the Father and the cooperation of the Holy Spirit was incarnate, we confess two natures and one hypostasis; and one Son, our Lord Jesus Christ, both God and man, and one person; but two wills and two energies; each nature with its own property, indivisibly and without confusion. For the property of divinity is to raise the dead and perform the divine signs; the property of humanity is to hunger and thirst and toil, and to undergo passions. For he was united with the flesh without confusion and indivisibly, with which flesh he was taken up, and sat at the right hand of the Father, and will come in glory at the consummation of the ages to judge the living and the dead, God incarnate.