II. And now note the 'constraining word.'
I have already said that the return of the two, who had been sent to see how things were going with the recent converts in the infant Churches, brought the Apostle good tidings, and so lifted off a great load of anxiety from his heart. No wonder! He had left raw recruits under fire, with no captain, and he might well doubt whether they would keep their ranks. But they did. So the pressure was lifted off, and the pressure being lifted off, spontaneously the old impulse gripped him once more; like a spring which leaps back to its ancient curve when some alien force is taken from it. It must have been a very deep and a very habitual impulse, which thus instantly reasserted itself the moment that the pressure of anxiety was taken out of the way.
The word constrained him. What to do? To declare it. Paul's example brings up two thoughts--that that impulse may vary at times, according to the pressure of circumstances, and may even be held in abeyance for a while; and that if a man is honestly and really a Christian, as soon as the incumbent pressure is taken away, he will feel, 'Necessity is laid upon me; yea, woe is me if I preach not the Gospel.' For though Paul's sphere of work was different from ours, his obligation to work and his impulse to work were such as are, or should be, common to all Christians. The impulse to utter the word that we believe and live by seems to me to be, in its very nature, inseparable from earnest Christian faith. All emotion demands expression; and if a man has never felt that he must let his Christian faith have vent, it is a very bad sign. As certainly as fermentation or effervescence demands outgush, so certainly does emotion demand expression. We all know that. The same impulse that makes a mother bend over her babe with unmeaning words and tokens that seem to unsympathetic onlookers foolish, ought to influence all Christians to speak the Name they love. All conviction demands expression. There may be truths which have so little bearing upon human life that he who perceives them feels little obligation to say anything about them. But these are the exceptions; and the more weighty and the more closely affecting human interests anything that we have learned to believe as truth is, the more do we feel in our hearts that, in making us its believers, it has made us its apostles. Christ's saying, 'What ye hear in the ear, that preach ye on the housetops,' expresses a universal truth which is realised in many regions, and ought to be most emphatically realised in the Christian. For surely of all the truths that men can catch a glimpse of, or grapple to their hearts, or store in their understandings, there are none which bring with them such tremendous consequences, and therefore are of so solemn import to proclaim to all the children of men, as the truth, which we profess we have received, of personal salvation through Jesus Christ.
If there never had been a single commandment to that effect, I know not how the Christian Church or the Christian individual could have abstained from declaring the great and sweet Name to which it and he owe so much. I do not care to present this matter as a commandment, nor to speak now of obligation or responsibility. The _impulse_ is what I would fix your attention upon. It is inseparable from the Christian life. It may vary in force, as we see in the incident before us. It will vary in grip, according as other circumstances and duties insist upon being attended to. The form in which it is yielded to will vary indefinitely in individuals. But if they are Christian people it is always there.