We have seen that the unknown companion of Andrew was probably the Evangelist himself, who, in accordance with his uniform habit, suppresses his own name, and that that omission points to John's authorship of this Gospel. Another morsel of evidence as to the date and purpose of the Gospel lies in the mention here of Andrew as 'Simon Peter's brother.' We have not yet heard anything about Simon Peter. The Evangelist has never mentioned his name, and yet he takes it for granted that his hearers knew all about Peter, and knew him better than they did Andrew. That presupposes a considerable familiarity with the incidents of the Gospel story, and is in harmony with the theory that this fourth Gospel is the latest of the four, and was written for the purpose of supplementing, not of repeating, their narrative. Hence a number of the phenomena of the Gospel, which have troubled critics, are simply and sufficiently explained. But that by the way. Passing that, notice first the illustration that we get here of how instinctive and natural the impulse is, when a man has found Jesus Christ, to tell some one else about Him. Nobody said to Andrew, 'Go and look for your brother,' and yet, as soon as he had fairly realised the fact that this Man standing before him was the Messiah, though the evening seems to have come, he hurries away to find his brother, and share with him the glad conviction. Now, that is always the case. If a man has any real depth of conviction, he cannot rest till he tries to share it with somebody else. Why, even a dog that has had its leg mended, will bring other limping dogs to the man that was kind to it. Whoever really believes anything becomes a propagandist. Look round about us to-day! and hearken to the Babel, the wholesale Babel of noises, where every sort of opinion is trying to make itself heard. It sounds like a country fair where every huckster is shouting his loudest. That shows that the men believe the things that they profess. Thank God that there is so much earnestness in the world! And now are Christians to be dumb whilst all this vociferous crowd is calling its wares, and quacks are standing on their platforms shouting out their specifics, which are mostly delusions? Have you not a medicine that will cure everything, a real heal-all, a veritable pain-killer? If you believe that you have, certainly you will never rest till you share your boon with your brethren. If the natural effect of all earnest conviction, viz. a yearning and an absolute necessity to speak it out, is no part of your Christian experience, very grave inferences ought to be drawn from that. This man, before he was four-and-twenty hours a disciple, had made another. Some of you have been disciples for as many years, and have never even tried to make one. Whence comes that silence which is, alas, so common among us?