What does it means for a human being to possess the truth

Kierkegaard’s concern is really not with the adequacy of a philosophical theory of truth, but with the question of what it means for a human being to possess the truth. To grasp the significance of this, we must not think of truth in the way characteristic of contemporary philosophy, focusing on the properties of propositions, but in the way ancient thinkers conceived of truth. For Socrates and Plato, at least as Kierkegaard understood them, having the truth meant having the key to human life, possessing that which makes it possible to live life as it was intended to be lived.

C Stephen Evans, Introduction: Kierkegaard’s life and works