II. Then there is another principle, of which this designation of our text is also the witness, viz., that in Christianity we have the path of conduct and practical life traced out for us all.
The 'way of a man' is, of course, a metaphor for his outward life and conduct. It is connected with the familiar old image which belongs to the poetry of all languages, by which life is looked at as a journey. That metaphor speaks to us of the continual changefulness of our mortal condition; it speaks to us, also, of the effort and the weariness which often attend it. It proclaims also the solemn thought that a man's life is a unity, and that, progressive, it goes some whither, and arrives at a definite goal.
And that idea is taken up in this phrase, '_the_ way,' in such a fashion as that there are two things asserted: first, that Christianity provides _a_ way, a path for the practical activity, that it moulds our life into a unity, that it prescribes the line of direction which it is to follow, that it has a starting-point, and stages, and an end; also, that Christianity is _the_ way for practical life, the only path and mode of conduct which corresponds with all the obligations and nature of a man, and which reason, conscience, and experience will approve. Let us look, just for a moment or two, at these two thoughts: Christianity is _a_ way; Christianity is _the_ way.
It is a way. These early disciples must have grasped with great clearness and tenacity the practical side of the Gospel, or they would never have adopted this name. If they had thought of it as being only a creed, they would not have done so.
And it is not only a creed. All creed is meant to influence conduct. If I may so say, _credenda_, 'things to be believed,' are meant to underlie the _agenda_, the things to be done. Every doctrine of the New Testament, like the great blocks of concrete that are dropped into a river in order to lay the foundation of a bridge, or the embankment that is run across a valley in order to carry a railway upon it,--every doctrine of the New Testament is meant to influence the conduct, the 'walk and conversation,' and to provide a path on which activity may advance and expatiate.
I cannot, of course, dwell upon this point with sufficient elaboration, or take up one after another the teachings of the New Testament, in order to show how close is their bearing upon practical life. There is plenty of abstract theology in the form of theological systems, skeletons all dried up that have no life in them. There is nothing of that sort in the principles as they lie on the pages of the New Testament. There they are all throbbing with life, and all meant to influence life and conduct.
Remember, my friend, that unless your Christianity is doing that for you, unless it has prescribed a path of life for you, and moulded your steps into a great unity, and drawn you along the road, it is nought,--nought!
But the whole matter may be put into half a dozen sentences. The living heart of Christianity, either considered as a revelation to a man, or as a power within a man, that is to say, either objective or subjective, is love. It is the revelation of the love of God that is the inmost essence of it as revelation. It is love in my heart that is the inmost essence of it as a fact of my nature. And is not love the most powerful of all forces to influence conduct? Is it not 'the fulfilling of the law,' because its one single self includes all commandments, and is the ideal of all duty, and also because it is the power which will secure the keeping of all the law which itself lays down?