(From the council held in Constantinople in 360, ratified previously at the ecumenical councils of Arminium & Seleucia)
We believe in one God, Father Almighty, from whom are all things.
And in the only-begotten Son of God, begotten from God before all ages and before every beginning, by whom all things were made, visible and invisible, and begotten as only-begotten, only from the Father only, God from God, like to the Father that begat Him according to the Scriptures; whose origin no one knows, except the Father alone who begat Him. He as we acknowledge the only-begotten Son of God, the Father having sent Him, came here from the heavens, as it is written, for the undoing of sin and death, and was born of the Holy Ghost, of Mary the virgin according to the flesh, as it is written, and conversed with the disciples, and having fulfilled the whole Economy according to the Father’s will, was crucified and died and was buried and ascended to the parts below the earth, at whom hades itself shuddered; who also rose from the dead on the third day, and abode with the disciples, and forty days being fulfilled, was taken up into the heavens, and sits on the right hand of the Father to come in the last day of the resurrection in the Father’s glory, that He may render to every man according to his works.
And in the Holy Ghost, whom the only-begotten Son of God Himself, Jesus Christ, our Lord and God, promised to send to the race of man, as Paraclete, as it is written, ‘the Spirit of truth’ (John 16:13), which He sent to the them when He had ascended into the heavens.
But the name of ‘essence,’ which was set down by the Fathers in simplicity, and, being unknown by the people, caused offense, because the Scriptures do not contain it, it has seemed good to abolish, and for the future to make no mention of it at all; since the divine scriptures have made no mention of the essence of Father and Son. For neither ought ‘subsistence’ to be named concerning Father, Son and Holy Ghost. But we say that the Son is like the Father, as the divine Scriptures say and teach; and all the heresies, both those which have been already condemned, and whatever are of modern date, being contrary to this published statement, be they anathema.