Those sentences which declared what is the very life of the Church, drove back the first disciples from Christ. They could believe in a prophet,--they could believe in any notions or doctrines; they could not believe in a Divine Word who would give His flesh for the life of the world. There is a sadness, a human sadness, in our Lord's question to His own apostles, which proves that even they might have been staggered by the thought that they must eat His flesh and drink His blood, and that even they might desert Him. And though Peter's answer was a noble one, because it showed that he would cling to his Master, in spite of all ignorance and confusion,--because it showed that he trusted in Him as a Person, and that he was sure there was eternal life in Him, however little he might understand the way in which that life was to be received,--yet the allusion to Judas, at the close of all, has in it a depth of sorrow and of meaning which no one can fathom. It is quite evident, I think, that the sin of Judas is in some way connected by our Lord with unbelief in that lesson which He had been teaching in the synagogue of Capernaum. But how could that unbelief convert him into a devil? I answer with trembling. Judas is represented elsewhere as a covetous man. In following Christ, he was seeking not Christ but himself. He could believe in One who would give _him_ a place in the Church below or the Church above. He could not believe in a Son of Man who came to give life to the _world_. But a person who has lived with Christ, and been a minister and an apostle of Christ, and yet sinks into a separate selfish existence, answers to the Scripture definition and idea of a devil.