"I gladly undertake, by way of brief repetition, to emphasize what other pseudonyms have emphasized. The absurd is not the absurd or absurdities without any distinction (wherefore Johannes de Silentio: "How many of our age understand what the absurd is?"). The absurd is a category, and the most developed thought is required to define the Christian absurd accurately and with conceptual correctness. The absurd is a category, the negative criterion, of the divine or of the relationship to the divine. When the believer has faith, the absurd is not the absurd — faith transforms it, but in every weak moment it is again more or less absurd to him. The passion of faith is the only thing which masters the absurd — if not, then faith is not faith in the strictest sense, but a kind of knowledge. The absurd terminates negatively before the sphere of faith, which is a sphere by itself. To a third person the believer relates himself by virtue of the absurd; so must a third person judge, for a third person does not have the passion of faith. Johannes de Silentio has never claimed to be a believer; just the opposite, he has explained that he is not a believer — in order to illuminate faith negatively."
January 1, 1970
https://en.wikiquote.org/wiki/Absurdism