Chapter XV.
He shows that those who patronize this false teaching
acknowledge two Christs.
But
still, I had begun to say,
that as you certainly make out two Christs this very matter must be
illustrated and made clear. Tell me, I pray you, you who sever Christ
from the Son of God, how can you confess in the Creed that Christ was
begotten of God? For you say: “I believe in God the Father, and
in Jesus Christ His Son.” Here then you have Jesus Christ the Son
of God: but you say that it was not the same Son of God who was born of
Mary. Therefore there is one Christ of God, and another of Mary. In
your view then there are two Christs. For, though in the Creed you do
not deny Christ, you say that the Christ of Mary is another than the
one whom you confess in the Creed. But perhaps you say that Christ was
not begotten of God: how then do you say in the Creed: “I believe
in Jesus Christ the Son of God?” You must then either deny the
Creed or confess that Christ is the Son of God. But if you confess in
the Creed that Christ is the Son of God, you must also confess that the
same Christ, the Son of God, is of Mary. Or if you make out another
Christ of Mary, you certainly make the blasphemous assertion that there
are two Christs.