John Calvin on Matthew 26:22

22. They began every one of them to say to him. I do not think that the disciples were alarmed, as persons struck with terror are wont to give themselves uneasiness without any reason; but, abhorring the crime, they are desirous to clear themselves from the suspicion of it. It is, indeed, a mark of reverence, that when indirectly blamed, they do not reply angrily to their Master, but each person constitutes himself his own judge, (as the object which we ought chiefly to aim at is, to be acquitted by his own mouth;) but, relying on a good conscience, they wish to declare frankly how far they are from meditating such a crime.