5. Bible and Book of Concord on Christian Union and Fellowship.-- Nothing is more frequently taught and stressed by the Bible than the truth that church-fellowship presupposes, and must be preceded by, unity in the spirit, in doctrine. Amos 3, 3: "How can two walk together except they be agreed?" According to the Bible the Word of God alone is to be taught, heard, and confessed in the Christian Church. Only true teachers are to preach, in the Church: Deut. 13, 6 ff.; Jer. 23, 28. 31. 32; Matt. 5, 19; 28, 20; 2 Cor. 2, 17; Gal. 1, 8; 1 Tim. 4, 16; 1 Pet. 4, 11. Christians are to listen to true teachers only: Matt. 7, 15; John 8, 31; 10, 27. 5; Acts 2, 42; Rom. 16, 17; 2 John 10; 1 Tim. 6, 3-5; Eph. 4, 14; Titus 3, 10; 2 Cor. 6, 14-18. In the Church the true doctrine, and only the true doctrine, is to be confessed, and that unanimously by all of its members: 1 Cor. 1, 10; Eph. 4, 3-6. 13; 1 Tim. 5, 22; Matt. 10, 32. 33. Christian union and fellowship without the "same mind," the "same judgment," and the "same speech" with respect to the Christian truths is in direct conflict with the clear Scriptures. The unity of the Spirit demanded Eph. 4, 3 requires that Christians be one in doctrine, one, not 50 or 75, but 100 per cent. With this attitude of the Bible toward Christian union and fellowship the Lutheran symbols agree. The Eleventh [tr. note: sic!] Article of the Augsburg Confession declares: "For this is sufficient to true unity of the Christian Church that the Gospel be preached unanimously according to the pure understanding, and that the Sacraments be administered in agreement with the divine Word. And it is not necessary to true unity of the Christian Church that uniform ceremonies, instituted by men, be observed everywhere, as St. Paul says, Eph. 4, 4. 5: 'One body, one Spirit, even as ye are called in one hope of your calling; one Lord, one faith, one Baptism.'" "Pure understanding of the Gospel" is here contrasted with "ceremonies instituted by men." Accordingly, with respect to everything that God plainly teaches in the Bible unity is required, while liberty prevails only in such things as are instituted by men. In this sense the Lutheran Church understands the _"Satis est"_ of the Augustana, as appears from the Tenth Article of the Formula of Concord: "We believe, teach, and confess also that no church should condemn another because one has less or more external ceremonies not commanded by God than the other, if otherwise there is agreement among them in doctrine and all its articles, as also in the right use of the Sacraments, according to the well-known saying: 'Disagreement in fasting does not destroy agreement in faith.'" (Mueller 553, 7.) It cannot, then, be maintained successfully that, according to the Lutheran symbols, some doctrines, though clearly taught in the Bible, are irrelevant and not necessary to church-fellowship. The Lutheran Confessions neither extend the