More Old Testament Fulfillment

In verse 27, Jesus quotes Zechariah 13:7.

Jesus makes it clear that the reason his disciples will fall away is because that's what the written scriptures say. The written Word of God has real power and influence over events.

Peter insists that he'll be different, but Jesus knows better. Peter means well, but as usual, he is impulsive and can't follow through on his initial commitment.

Peter, James and John go with Jesus to the Garden of Gethsemane. While Jesus pours out his heart to his father in prayer, the others fall asleep three times. Jesus is particularly critical of Peter, and advises him to pray that he'd stay out of temptation.

Praying to stay out of temptation is always a good idea!