30. I will ask this objector in reply, whether he remembers my calling Him anything else than born, and whether I did not say that existence before times eternal and birth have the same meaning in the case of Him that was. For the birth of One already existing is not really birth, but a self-wrought change through birth, and the eternal existence of One Who is born means that in His birth He is prior to any conception of time, and that there is no room for the mind to suppose that at any time He was unborn. And so an eternal birth before times eternal is not the same as existence before being born. But to have been born always before times eternal excludes the possibility of having had no existence before birth.

30. Aliud est semper natum esse, aliud prius esse quam nasci.---Et calumnianti respondebo: Numquid a me aliud, quam natum, dici meminerit? Aut 0451C numquid ante tempora aeterna esse, id ipsum sit quod est, eum qui erat nasci? quia nasci quod erat, jam non nasci est, sed se ipsum demutare nascendo. Natum autem semper esse hoc est, sensum 0452A temporum nascendo praecurrere, neque intelligentiae patere aliquando fuisse non natum. Non est itaque id ipsum, natum ante tempora aeterna semper esse, et esse ante quam nasci. Natum autem ante tempora aeterna semper esse, excludit non fuisse ante quam nascitur.