No, reader; the only ground on which we can believe anything is this one eternal clause, "_It is written_"! Do you not admit this? Does not your whole soul bow down to it? Do you not hold it to be a principle entirely vital? We believe you do, as a Christian, hold, admit, and reverently believe this. Well, then, _it is written_, "There is one body and one Spirit" (Eph. iv.). This is as clearly revealed in Scripture as that "we are justified by faith," or any other truth. Do outward appearances affect the saving, fundamental doctrine of justification by faith? Are we to call in question this precious truth because there is so little exhibition of its purifying power in the lives of believers? Who could admit such a fatal principle as this? What a complete upturning of all the foundations of our faith is necessarily involved in the admission of this most mischievous line of reasoning! We believe because it is written in the Word, not because it is exhibited in the world. Doubtless it ought to be exhibited, and it is our sin and shame that it is not. To this we shall afterward refer more fully; but we must insist upon the proper ground of belief, namely, divine revelation; and when this is clearly seen and fully admitted, it applies as distinctly to the doctrine of the unity of the body as it does to the doctrine of justification by faith. PART V We feel it to be of real moment to insist upon this principle, namely, that the _only_ ground on which we can believe any doctrine is its being revealed in the divine Word. It is thus we believe all the great truths of Christianity. We know nothing and can believe nothing of what is spiritual, heavenly, or divine, save as we find it revealed in the word of God. How do I know I am a sinner? Because Scripture hath declared that "all have sinned." No doubt I feel that I am a sinner; but I do not believe because I feel, but I feel because I believe, and I believe because God has spoken. Faith rests upon divine revelation, not on human feelings or human reasonings. "It is written" is quite sufficient for faith. It can do with nothing less, but it asks nothing more. God speaks: faith believes. Yes, it believes simply because God speaks. It does not judge God's Word by outward appearances, but it judges outward appearances by the word of God. Thus it is in reference to all the cardinal truths of the Christian religion, such as the Trinity, the deity of our Lord Jesus Christ, His atonement, His priesthood, His advent, the doctrine of original sin, of justification, judgment to come, eternal punishment. We believe these grand and solemn truths, not on the ground of feeling, of reason, or of outward appearances, but simply on the ground of divine revelation.