The assurance of faith is often talked about in terms of feeling. We feel assured, we feel a conviction in our hears, we feel confident of a belief or hoped-for outcome. And there is no doubt an aspect of assurance that involves feelings. The difficulty however is that feelings are fleeting. They come and go. We may feel assurance about something, but days or weeks or months later, no longer feel that assurance. And then after a time, we once again feel that assurance. If that’s assurance, that’s not very sure.
Part of the dilemma is that we normally associate conviction with knowledge. If we know a thing to be true, we are convinced of it. But if we are uncertain about something, then we normally assume we don’t have enough knowledge about the thing. Or, worse, we assume that we lack faith. Because if we have faith about a matter, we believe we also will have strong feelings about it. We separate out faith and knowledge. And, tragically, since we tie faith and feeling so closely together, we lose a vital aspect of faith, which is to bring assurance to our hearts. Or, to say it another way, assurance is the expression of trust. We are certain of a matter, because we trust that it is true or will come to be true. Assurance is the exercise of faith itself.