The Thing About Kierkegaard

He presupposes the truth of Christianity.  The question for him is not whether it is true  but how it is properly to be lived.  His concern is the existential appropriation of what is antecedently accepted as true.  This is reflected in his otherwise absurd dictum, "Truth is subjectivity."  So Heidegger was right when he called him, not a philosopher, but "a religious writer."