25. He denied it. How shocking the stupidity of Peter, who, after having denied his Master, not only has no feeling of repentance, but hardens himself by the very indulgence he takes in sinning! If each of them in his turn had asked him, he would not have hesitated to deny his Master a thousand times. Such is the manner in which Satan hurries along wretched men, after having degraded them. We must also attend to the circumstance which is related by the other Evangelists, (Matthew 26:74; Mark 14:71,) that he began to curse and to swear, saying, that he did not know Christ. Thus it happens to many persons every day. At first, the fault will not be very great; next, it becomes habitual, and at length, after that conscience has been laid asleep, he who has accustomed himself to despise God will think nothing unlawful for him, but will dare to commit the greatest wickedness. There is nothing better for us, therefore, than to be early on our guard, that he who is tempted by Satan, while he is yet uncorrupted, may not allow himself the smallest indulgence.

27. Immediately the coch crew. The Evangelist mentions the crowing of the coch, in order to inform us, that Peter was warned by God at the very time; and for this reason the other Evangelists tell us, that he then remembered the words of the Lord, (Matthew 26:75; Mark 14:72,) though Luke relates that the mere crowing of the cock did not produce any effect on Peter, till Christ looked at him, (Luke 22:61.) Thus, when any person has once begun to fall through the suggestions of Satan, no voice, no sign, no warning, will bring him back, until the Lord himself cast his eyes upon him.