Origen on saving and healing people by using deceit and lying

"Do you not say, Celsus, that sometimes it is allowable to use deceit and lying as a medicine? Why, then, is it unthinkable that something of this sort occured with the purpose of bringing salvation? For some characters are reformed by certain doctrines which are more false than true, just as physicians sometimes use similar words to their patients. This, however, has been our defence on other points. But further, there is nothing wrong if the person who heals sick friends healed the human race which was dear to him with such means as one would not use for choice, but to which he was confined by force or circumstances. Since the human race was mad, it had to be cured by methods which the Word saw to be beneficial to lunatics that they might recover their right mind." (Con. Cel. IV,19)