John 6:70

(saith Peter) and are sure, both from what we have heard from time, and from the miracles which we have seen wrought by thee, The very words by which St. Matthew {Mat 16:16} expresses that noble confession of his, which our Saviour calleth the rock, upon which he would build his church. But notwithstanding this acknowledgment, which speaks the seeds of this faith now sown in the heart of Peter, and the hearts of the rest; yet whoso considereth the passages of the other evangelists after this, will see reason to believe, that their persuasion as to this was but faint, till Christ by his resurrection declared himself the Son of God with power.

3. The melancholy remark which our Lord Jesus made upon this reply of Peter's (v. 70, 71): Have not I chosen you twelve, and one of you is a devil? And the evangelist tells us whom he meant: he spoke of Judas Iscariot. Peter had undertaken for them all that they would be faithful to their Master. Now Christ does not condemn his charity (it is always good to hope the best), but he tacitly corrects his confidence. We must not be too sure concerning any. God knows those that are his; we do not. Observe here, (1.) Hypocrites and betrayers of Christ are no better than devils. Judas not only had a devil, but he was a devil. One of you is a false accuser; so diabolos sometimes signifies (2 Tim 3 3); and it is probable that Judas, when he sold his Master to the chief priests, represented him to them as a bad man, to justify himself in what he did. But I rather take it as we read it: He is a devil, a devil incarnate, a fallen apostle, as the devil a fallen angel. He is Satan, an adversary, an enemy to Christ. He is Abaddon, and Apollyon, a son of perdition. He was of his father the devil, did his lusts, was in his interests, as Cain, 1 John 3 12. Those whose bodies were possessed by the devil are never called devils (demoniacs, but not devils); but Judas, into whose heart Satan entered, and filled it, is called a devil. (2.) Many that are seeming saints are real devils. Judas had as fair an outside as many of the apostles; his venom was, like that of the serpent, covered with a fine skin. He cast out devils, and appeared an enemy to the devil's kingdom, and yet was himself a devil all the while. Not only he will be one shortly, but he is one now. It is strange, and to be wondered at; Christ speaks of it with wonder: Have not I? It is sad, and to be lamented, that ever Christianity should be made a cloak to diabolism. (3.) The disguises of hypocrites, however they may deceive men, and put a cheat upon them, cannot deceive Christ, for his piercing eye sees through them. He can call those devils that call themselves Christians, like the prophet's greeting to Jeroboam's wife, when she came to him in masquerade (1 Kings 14 6): Come in, thou wife of Jeroboam. Christ's divine sight, far better than any double sight, can see spirits. (4.) There are those who are chosen by Christ to special services who yet prove false to him: I have chosen you to the apostleship, for it is expressly said that Judas was not chosen to eternal life (ch. 13 18), and yet one of you is a devil. Note, Advancement to places of honour and trust in the church is no certain evidence of saving grace. We have prophesied in thy name. (5.) In the most select societies on this side heaven it is no new thing to meet with those that are corrupt. Of the twelve that were chosen to an intimate conversation with an incarnate Deity, as great an honour and privilege as ever men were chosen to, one was an incarnate devil. The historian lays an emphasis upon this, that Judas was one of the twelve that were so dignified and distinguished. Let us not reject and unchurch the twelve because one of them is a devil, nor say that they are all cheats and hypocrites because one of them was so; let those that are so bear the blame, and not those who, while they are undiscovered, incorporate with them. There is a society within the veil into which no unclean thing shall enter, a church of first-born, in which are no false brethren.

Verses 66-71 When we admit into our minds hard thoughts of the words and works of Jesus, we enter into temptation, which, if the Lord in mercy prevent not, will end in drawing back. The corrupt and wicked heart of man often makes that an occasion for offence, which is matter of the greatest comfort. Our Lord had, in the foregoing discourse, promised eternal life to his followers; the disciples fastened on that plain saying, and resolved to cleave to him, when others fastened on hard sayings, and forsook him. Christ's doctrine is the word of eternal life, therefore we must live and die by it. If we forsake Christ, we forsake our own mercies. They believed that this Jesus was the Messiah promised to their fathers, the Son of the living God. When we are tempted to backslide or turn away, it is good to remember first principles, and to keep to them. And let us ever remember our Lord's searching question; Shall we go away and forsake our Redeemer? To whom can we go? He alone can give salvation by the forgiveness of sins. And this alone brings confidence, comfort, and joy, and bids fear and despondency flee away. It gains the only solid happiness in this world, and opens a way to the happiness of the next.