Creed of the Council of Nicaea, 325 AD

My translation from the Greek of RPC Hanson, The Search for the Christian Doctrine of God, p. 876:

We believe in one God the Father Almighty, maker of all things seen and unseen.
We believe in one God the Father Almighty, maker of all things seen and unseen.

And in one Lord Jesus Christ the only-begotten Son of God, begotten from the Father, that is, from the essence of the Father, God from God, light from light, true God from true God, begotten, not made, of one substance with the Father, through whom all things came to be, things in heaven and things on earth;

who, on account of us men and our salvation, came down and became flesh, and was made man, suffered, and rose again on the third day, ascended to the heavens; he shall come to judge the living and the dead.

And in the Holy Spirit.

And that those who say: “There was when he was not,” and, “Before he was begotten, he was not,” and that he caem to be from those things which do not exist or from another hypostasis or say that he essences are either liable to be changed or that the Son is of another nature than the Father — these the catholic and apostolic church anathematises.