However weak may be the faith of a true believer, however severe may be his temptations, however perturbed his heart may be respecting his own condition, he is never, as regards consciousness, in the condition that preceded the exercise of faith. The consciousness of the believer differs by a whole diameter from that of the unbeliever. At the lowest ebb of faith and hope and love his consciousness never drops to the level of the unbeliever at its highest pitch of confidence and assurance.
Many sincere believers are too introspective. They look too exclusively within, so that their hope is graduated by the degree of evidence of regeneration which they find in their own experience. This, except in rare cases, can never lead to the assurance of hope. We may examine our hearts with all the microscopic care prescribed by President Edwards in his work on The Religious Affections, and never be satisfied that we have eliminated every ground of misgiving and doubt. The grounds of assurance are not so much within, as without us. Systematic Theology (London, 1873), 3:107