Remigius of Auxerre
Catena Aurea · Matthäusevangelium 26
And when they had sung an hymn, they went out into the mount of Olives. Then saith Jesus unto them, All ye 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. But after I am risen again, I will go before you into Galilee. Peter answered and said unto him, Though all men shall be offended because of thee, yet will I never be offended. Jesus said unto him, Verily I say unto thee, That this night, before the cock crow, thou shalt deny me thrice. Peter said unto him, Though I should die with thee, yet will I not deny thee. Likewise also said all the disciples.
What the One affirms by His power of foreknowledge, the other denies through love; whence we may take a practical lesson, that in proportion as we are confident of the warmth of our faith, we should be in fear of the weakness of our flesh. Peter seems culpable, first, because he contradicted the Lord’s words; secondly, because he set himself before the rest; and thirdly, because he attributed every thing to himself as though he had power to persevere strenuously. His fall then was permitted to heal this in him; not that he was driven to deny, but left to himself, and so convinced of the frailty of his human nature.p