Athanasian Creed
Accordingly there is one Father, not three fathers;
there is one Son, not three sons;
there is one Holy Spirit, not three holy spirits.
Nothing in this trinity is before or after,
nothing is greater or smaller;
in their entirety the three persons
are coeternal and coequal with each other.
So in everything, as was said earlier,
we must worship their trinity in their unity
and their unity in their trinity.
Anyone then who desires to be saved
should think thus about the trinity.
But it is necessary for eternal salvation
that one also believe in the incarnation
of our Lord Jesus Christ faithfully.
Now this is the true faith:
That we believe and confess
that our Lord Jesus Christ, God's Son,
is both God and human, equally.
He is God from the essence of the Father,
begotten before time;
and he is human from the essence of his mother,
born in time; completely God, completely human,
with a rational soul and human flesh;
equal to the Father as regards divinity,
less than the Father as regards humanity.
Although he is God and human,
yet Christ is not two, but one.
He is one, however,
not by his divinity being turned into flesh,
but by God's taking humanity to himself.
He is one, certainly not by the blending of his essence,
but by the unity of his person.
For just as one human is both rational soul and flesh,
so too the one Christ is both God and human.
He suffered for our salvation;
he descended to hell;
he arose from the dead;
he ascended to heaven;
he is seated at the Father's right hand;
from there he will come to judge the living and the dead.
At his coming all people will arise bodily
and give an accounting of their own deeds.
Those who have done good will enter eternal life,
and those who have done evil will enter eternal fire.
This is the catholic faith:
one cannot be saved without believing it firmly and faithfully.