But, gentlemen, it is important for you to see that your opening ministry is not enveloped in mist simply because you have never made a real study of Christianity. This, I am afraid, is the commonest source of a vague theology. In a former lecture I have recommended a wide acquaintance with the masterpieces of literature; but some able men at college substitute this for the studies of their profession; and this is a fatal mistake. Literature ought to be a supplement to these, not a substitute for them. I have watched the subsequent career of more than one student who had pursued this course; and I must say it is not encouraging. Their supply of ideas soon runs out; their tone becomes secular; and the people turn away from them dissatisfied.
A student ought, while at college, to make himself master of at least one or two of the great books of the Christian centuries in which Christianity is exhibited as a whole by a master mind. If I may be allowed to mention my own experience, it happened to me, more by chance, perhaps, than wise choice, to master, when I was a student, three such books. One was Owen's work on _The Holy Spirit_, another Weiss' _New Testament Theology_, and the third Conybeare and Howson's _Life and Epistles of St. Paul_. Each of these may be said, in its own way, to exhibit Christianity entire, and I learned them almost by heart, as one does a text-book. I was not then thinking much of subsequent benefit; but I can say, that each of them has ever since been a quarry out of which I have dug, and probably I have hardly ever preached a sermon which has not exhibited traces of their influence.
There is another valuable result which will follow from the early mastery of books of this kind. You will be laying the foundation of the habit of what may be called Great Reading, by which I mean the systematic study of great theological works in addition to the special reading for the work of each Sunday. Week by week a conscientious minister has to do an immense amount of miscellaneous reading in commentaries, dictionaries, etc., in connection with the discourses in hand; but, in addition to this, he should be enriching the subsoil of his mind by larger efforts in wider fields. It is far from easy to carry this on in a busy pastorate; and it is almost impossible unless the foundation has been laid at college.[65]
One more hint I should like to give: it is a reminiscence from a casual lecture which I listened to when a student and profited by. Besides attending to theological studies in general, one ought to have a specialty. The minister, and even the student before he leaves college, should be spoken of as the man who knows this or that. Perhaps the best specialty to choose is some subject which is just coming into notice, such as, at present, Comparative Religion, or Christian Ethics, or, best of all, Biblical Theology. Such a specialty, early taken up, is like a well dug on one's property, which year by year becomes deeper. All the little streams and rivulets of reading and experience find their way into it; and almost unawares the happy possessor comes to have within himself a fountain which makes it impossible that his mind should ever run dry.
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Of course I cannot attempt to give here even the slightest sketch of the doctrinal system of St. Paul; but there are two characteristics of it which I should like to mention in closing, as they are essential to the right management of the element of preaching with which I have occupied you to-day.
The thinking of St. Paul went hand in hand with his experience. His Christianity began in a great experience, in which he discovered the secret of life and found peace with God. He set his mind to reflect upon this, so as to comprehend how it came about and what it involved; and the theology of the first part of his apostolate was nothing but the result of these broodings under the guidance of the Holy Spirit. These in their turn, however, brought him still nearer to God and closer to Christ; and so he obtained new and deeper experiences, of which the doctrines of his more advanced life are again the exposition. Thus his thinking was both experimental and progressive. If his Epistles be arranged in chronological order, it will easily be seen that there is a splendid growth in his theology from first to last. He never, indeed, gave up the doctrines of his earlier life; there is no inconsistency between one part of his writings and another; but neither his experience nor his thinking ever stood still; he made his first doctrines the foundations on which he reared a structure which was rising higher and higher to the very close of his life.