Why should this great question have been preceded by the other? Probably to make the disciples feel more distinctly the chaotic contradictions of the popular judgment, and their own isolation by their possession of the clearer light. He wishes them to see the gulf opening between them and their fellows, and so to bind them more closely to Himself. This is the question the answer to which settles everything for a man. It has an intensely sharp point. We cannot take refuge from it in the general opinion. Nor does any other man's judgment about Him matter one whit to us. This Christ has a strange power, after nineteen hundred years, of coming to each of us, with the same persistent interrogation on His lips. And to-day, as then, all depends on the answer which we give. Many answer by exalted estimates of Him, like these varying replies which ascribed to Him prophetic authority, but they have not understood His own name for Himself, nor drunk in the meaning of His self-revelation, unless they can reply with the full-toned confession of the apostle, which sets Him far above and apart from the highest and holiest. As to the contents of the confession, it includes both the human and the divine sides of Christ's nature. He is the Messiah, but He is more than what a Jew meant by that name; He is 'the Son of the living God,' by which we cannot indeed suppose that Peter meant all that he afterwards learned it contained, or all that the Church has now been taught of its meaning, but which, nevertheless, is not to be watered down as if it did not declare His unique filial relation to the Father, and so His divine nature. Nathanael had burst into rapturous adoration of Jesus as 'the Son of God' at the very beginning; and the disciples' glad confidence, which cast out the fear of the dim form striding across the sea, had echoed the confession; all had heard His words, 'No man knoweth the Father but the Son.' So we need not hesitate to interpret this confession as in essence and germ containing the whole future doctrine of our Lord's divinity. True, the speaker did not know all which lay in His words. Do we? Do we not see here an illustration of the method of Christian progress in doctrine, which consists not in the winning of new truths, but in the penetrating further into the meaning of old and initial truths? The conviction which made and makes a Christian, is this of Peter's; and Christian growth is into, not away from, it.