We may gather the gravity of his error from the severity of the rebuke. Peter had much to learn, much to go through, ere he could grasp the great truth which His Lord was putting before him. But he did grasp it, by the grace of God, and confess it, and teach it with power. He was led to see not only that Christ was the Son of the living God, but that He was a rejected Stone, disallowed of men, but chosen of God and precious; and that all who through grace come to Him must share His rejection on earth as well as His acceptance in heaven. They are perfectly identified with Him. PART VI. At the close of John vi. we have a very clear and beautiful confession of Christ from the lips of our apostle--a confession rendered all the more touching and forcible by the circumstances under which it was delivered. Our blessed Lord, in His teachings in the synagogue at Capernaum, had unfolded truth which puts the poor human heart to the test, and withers up all the pretensions of man in a very remarkable manner. We cannot here attempt to enter upon the subject of our Lord's discourse, but the effect of it is thus recorded:--"From that time many of His disciples went back, and walked no more with Him." They were not prepared for the reception of such heavenly doctrine. They were offended by it, and they turned their backs upon that blessed One who alone was worthy of all the affections of the heart, and of the homage and devotion of the whole moral being. "_They went back, and walked no more with Him._" Now we are not told what became of these deserters, or whether they were saved or not. No such question is raised. We are simply told that they abandoned Christ, and ceased to be any longer publicly identified with His name and His cause. How many, alas! have since followed their sad example! It is one thing to profess to be the disciples of Christ, and another thing altogether to stand with firm purpose of heart on the ground of public testimony for His name, in thorough identification with a rejected Lord. It is one thing for people to flock to Christ because of the benefits which He bestows, and it is quite another to cleave to Him in the face of the world's scorn and contempt. The application of the doctrine of the cross very speedily thins the ranks of professors. In the chapter before us we see at one moment multitudes thronging enthusiastically around the Man who could so marvelously supply their need, and the next moment abandoning Him, when His teaching offended their pride.