(_c_) Even though there were no orderly arrangement of these facts, either in nature or in Scripture, an accurate systematizing of them by the human mind would not therefore be proved impossible, unless a principle were assumed which would show all physical science to be equally impossible. Astronomy and geology are constructed by putting together multitudinous facts which at first sight seem to have no order. So with theology. And yet, although revelation does not present to us a dogmatic system ready-made, a dogmatic system is not only implicitly contained therein, but parts of the system are wrought out in the epistles of the New Testament, as for example in Rom. 5:12-19; 1 Cor. 15:3, 4; 8:6; 1 Tim. 3:16; Heb. 6:1, 2. We may illustrate the construction of theology from the dissected map, two pieces of which a father puts together, leaving his child to put together the rest. Or we may illustrate from the physical universe, which to the unthinking reveals little of its order. “Nature makes no fences.” One thing seems to glide into another. It is man’s business to distinguish and classify and combine. Origen: “God gives us truth in single threads, which we must weave into a finished texture.” Andrew Fuller said of the doctrines of theology that “they are united together like chain-shot, so that, whichever one enters the heart, the others must certainly follow.” George Herbert: “Oh that I knew how all thy lights combine, And the configuration of their glory; Seeing not only how each verse doth shine, But all the constellations of the story!” Scripture hints at the possibilities of combination, in _Rom. 5:12-19_, with its grouping of the facts of sin and salvation about the two persons, Adam and Christ; in _Rom. 4:24, 25_, with its linking of the resurrection of Christ and our justification; in _1 Cor. 3:6_, with its indication of the relations between the Father and Christ; in _1 Tim. 3:16_, with its poetical summary of the facts of redemption (see Commentaries of DeWette, Meyer, Fairbairn); in _Heb. 6:1, 2_, with its statement of the first principles of the Christian faith. God’s furnishing of concrete facts in theology, which we ourselves are left to systematize, is in complete accordance with his method of procedure with regard to the development of other sciences. See Martineau, Essays, 1:29, 40; Am. Theol. Rev., 1859:101-126—art. on the Idea, Sources and Uses of Christian Theology. IV. Necessity of Theology. The necessity of theology has its grounds: