Truly this question is not without its perplexities. But some explanation may be found. It is the obvious law of Divine Providence, it is and has been a great law of human progress, that Truth shall not be flashed upon the mind at once, either in religion or in any other of the great fields of interest and occupation to man; but that it shall be conquered and won through the medium of slow and gradual approach, even in the midst and by the help of misunderstanding and error. It is thus, doubtless, that men are trained to appreciate rightly the value of the truths and principles which they ultimately gain. In other words, past experience goes far to show us that moral excellence and the apprehension of truth, by such a being as man, can only be acquired by means of previous conflict with evil and untruth, in some one or other of their manifold forms; or, if not by an actual personal conflict for each of us individually, at least by means of the observed or recorded experience of others, more severely tried than ourselves. Thus it has doubtless been with the reception and gradual prevalence of Christian truths and principles. Men have had slowly, by a varied and sometimes painful experience, to learn that it is not by saying, Lord, Lord, by confessing some formal creed, or being included within the limits of some visible church; not by forms and ceremonies of any kind, such as baptism at the hands of a priest, or the confession of sin into his ear, that we may become truly recipients of the light and strength of the Gospel of Christ; but much rather by personal communion with the Spirit of God, by doing the things which the Lord hath said, by striving to be like Christ, in heart and in life, active in goodness, submissive to the Heavenly Father's will, and ready to the work of duty which He has given us to do. In proportion as this conception of Christianity comes forward into view, and assumes the pre-eminence to which it is entitled, and which is either implied or expressly declared in the principal writings of the New Testament, in the same degree must the merely dogmatic and sacerdotal idea sink into insignificance. It will be seen that moral and spiritual likeness to the Christian Head is what is all-important; and, consequently, that within the limits of the same communion, bound together by the common principle of Christian faith,--the principle of love and reverence for the one Master, Christ,--there may exist the most complete mental freedom, and even, to a very large extent, the most diverse theological beliefs. IV. But here I may be met by certain objections which will hardly fail to occur to different classes of readers.