Here is such a definition of truth: the objective uncertainty maintained through appropriation in the most passionate inwardness is truth, the highest truth there is for someone existing.
Kierkegaard: Concluding Unscientific Postscript (Cambridge Texts in the History of Philosophy), 171.
I am pretty sure I have shared this before. I think this hits the heart of what SK is speaking about. And I think it is an important step in discipleship – passionate inwardness.