Reading last night, I found this in Kierkegaard’s Journals (1847):

The evolution of the whole world tends in the direction of the absolute significance of the category of the particular, which is precisely the principle of Christianity. But as yet, concretely, we haven’t come especially far, for it is only recognized in abstracto. That explains why it is still impresses people as presumptuously and overwhelmingly arrogant to speak of the single individual, instead of recognizing that absolute humanity means precisely that everyone is a single individual.