Then said Jesus unto them,
All you shall be offended because of me this night: for it is written, I will smite the shepherd, and the sheep of the flock shall be scattered abroad.
All Commentaries on Matthew 26:31 Go To Matthew 26
John Chrysostom
AD 407
After this He mentions also a prophecy at once persuading them ever to give heed to the things that are written, and at same time making it plain that He was crucified, according to God's purpose; and by everything showing He was no alien from the old covenant, nor from the God preached therein, but that what is done is a dispensation, and that the prophets all proclaimed all things beforehand from the beginning that are comprised in the matter, so that they be quite confident about the better things also.
And He teaches us to know what the disciples were before the crucifixion, what after the crucifixion. For indeed they who, when He was crucified, were not able so much as to stand their ground, these after His death were mighty, and stronger than adamant.
And this self-same thing is a demonstration of His death, the fright and cowardice, I mean, of His disciples. For if when so many things have been both done and said, still some are shameless, and say that He was not crucified; if none of these things had come to pass, to what pitch of wickedness would they not have proceeded? So for this reason, not by His own sufferings only, but by what took place with respect to the disciples, He confirms the word concerning His death, and by the mysteries also, in every way confounding those that are diseased with the pest of Marcion. For this reason He suffers even the chief apostle to deny Him. But if He was not bound nor crucified, whence sprung the fear to Peter, and to the rest of the apostles.