John 13:38

I say unto thee In the parallel passage in S. Luke (Luke 22:34) Christ for the first and only time addresses the Apostle by the name which He had given him, -I tell thee, Peter;" as if He would remind him that the rock-like strength of character was not his own to boast of, but must be found in humble reliance on the Giver.

S. Luke agrees with S. John in placing the prediction of the triple denial in the supper-room: St Matt. (Matthew 26:30-35) and S. Mark (Mark 14:26-30) place it on the way from the room to Gethsemane. It is possible but not probable that the prediction was repeated; though some would even make three predictions recorded by (1) S. Luke, (2) S. John, (3) S. Matt. and S. Mark. See introductory note to Chapter 12 and Appendix B.

thrice All four accounts agree in this. S. Mark adds two details: (1) that the cock should crow twice, (2) that the prediction so far from checking S. Peter made him speak only the more vehemently, a particular which S. Peter's Gospel more naturally contains than the other three. S. Matthew and S. Mark both add that all the disciples joined in S. Peter's protestations.

It has been objected that fowls were not allowed in the Holy City. The statement is wanting in authority, and of course the Romans would pay no attention to any such rule, even if it existed among the Jews.