The Apostle explains himself more precisely when he writes, "not in word only, but in power and in the Holy Ghost and in much assurance." The gospel must come in word at least; but what a profanation it is to preach it only in word. Not preachers only, but all Christians, have to be on their guard, lest familiarity rob the great words of the gospel of their reality, and they themselves sink into that worst atheism which is for ever handling holy things without feeling them. How easy is it to speak of God, Christ, redemption, atonement, sanctification, heaven, hell, and to be less impressed and less impressive than if we were speaking of the merest trivialities of every-day life. It is hard to believe that an apostle could have seen such a possibility even from afar; yet the contrast of "word" and "power" leaves no room to doubt that such is his meaning. Words alone are worthless. No matter how brilliant, how eloquent, how imposing they may be, they cannot do the work of an evangelist. The call to this requires "power." No definition of power is given; we can only see that it is that which achieves spiritual results, and that the preacher is conscious of possessing it. It is not his own, certainly: it works through the very consciousness of his own want of power; "when I am weak, then am I strong." But it gives him hope and confidence in his work. Paul knew that it needed a stupendous force to make bad men good; the forces to be overcome were so enormous. All the sin of the world was arrayed against the gospel; all the dead weight of men's indifference, all their pride, all their shame, all their self-satisfaction, all their cherished wisdom. But he came to Thessalonica _strong_ in the Lord, confident that his message would subdue those who listened to it; and therefore, he argued, the Thessalonians were the objects of God's electing grace.