In believing, we entrust ourselves to the knowledge acquired by other people. This suggests an important tension. On the one hand, the knowledge acquired through belief can seem an imperfect form of knowledge, to be perfected gradually through personal accumulation of evidence: on the other hand, belief is often humanly richer than mere evidence, because it involves an interpersonal relationship and brings into play not only a person’s capacity to know but also the deeper capacity to entrust oneself to others, to enter into a relationship with them which is intimate and enduring.

It should be stressed that the truths sought in this interpersonal relationship are not primarily empirical or philosophical. Rather, what is sought is the truth of the person – what the person is and what the person reveals from deep within. Human perfection, then, consists not simply in acquiring an abstract knowledge of the truth, but in a dynamic relationship of faithful self-giving with others. It is in this faithful self-giving that a person finds a fullness of certainty and security. At the same time, however, knowledge through belief, grounded as it is on trust between persons, is linked to truth: in the act of believing, men and women entrust themselves to the truth which the other declares to them. Pope John Paul II