The fact that we will one day walk by sight does not cancel out the necessity of walking by faith in this dispensation. Although the church militant and the church triumphant are fundamentally one, there is nevertheless a difference between them in position and life in the present. The boundary line cannot and may not be erased. We will never achieve a heavenly life while we are here on earth. We walk by faith, not by sight. Now we see in a mirror dimly; in the hereafter, and not before, we will see face to face and will know as we are known. The vision of God has been reserved for heaven. On earth we will never be self-reliant and independent.
Reformed Dogmatics Vol. 1: Prolegomena (Grand Rapids, Michigan; Baker Academic; 2003) p. 474.