Theophylact of Ohrid — as excerpted in the Catena Aurea on Mark 14:66-72

“Therefore Peter was seized with fear, and for-getting the word of the Lord, which said, Whosoever shall confess me before men, him will I confess before my Father, (Matt. 30, 32) he denied our Lord; wherefore there follows: But he began to curse and to swear, saying, I know not this man of whom ye speak.”