GREGORY: I say boldly, that without faith not even the unbeliever lives. For if I should wish to question that same unbeliever, what father or what mother he had, he will straightway answer, this man and that woman. And if I should at once require of him whether he knew when he was conceived, or saw when he was born, he will confess that he neither knew nor saw any of these things, and yet he believes what he did not see. For he testifies without doubt that he had that man for father and that woman for mother. PETER: I confess that until now I did not know that the unbeliever had faith. GREGORY: Even unbelievers have faith, but would that it were in God. For if indeed they had it, they would not be unbelievers.
But from this they are to be reproved in their own perfidy, and from this to be provoked to the grace of faith: for if concerning their own visible body they believe what they by no means saw, why do they not believe the invisible things, which cannot be seen bodily?