1. A presumptive confidence in our own ability.
31 “Simon, Simon, behold, Satan demanded to have you, that he might sift you like wheat, 32 but I have prayed for you that your faith may not fail. And when you have turned again, strengthen your brothers.” 33 Peter said to him, “Lord, I am ready to go with you both to prison and to death.” 34 Jesus said, “I tell you, Peter, the rooster will not crow this day, until you deny three times that you know me.” Luke 22:31-34 (ESV)
18 Pride goes before destruction, and a haughty spirit before a fall. Proverbs 16:18 (ESV)
2. An impetuous outburst from our own understanding
49 And when those who were around him saw what would follow, they said, “Lord, shall we strike with the sword?” 50 And one of them struck the servant of the high priest and cut off his right ear. 51 But Jesus said, “No more of this!” And he touched his ear and healed him. Luke 22:49-51 (ESV)
3. A grievous denial in the face of worldly opposition
54 Then they seized him and led him away, bringing him into the high priest’s house, and Peter was following at a distance. 55 And when they had kindled a fire in the middle of the courtyard and sat down together, Peter sat down among them. 56 Then a servant girl, seeing him as he sat in the light and looking closely at him, said, “This man also was with him.” 57 But he denied it, saying, “Woman, I do not know him.” 58 And a little later someone else saw him and said, “You also are one of them.” But Peter said, “Man, I am not.” 59 And after an interval of about an hour still another insisted, saying, “Certainly this man also was with him, for he too is a Galilean.” 60 But Peter said, “Man, I do not know what you are talking about.” And immediately, while he was still speaking, the rooster crowed. 61 And the Lord turned and looked at Peter. And Peter remembered the saying of the Lord, how he had said to him, “Before the rooster crows today, you will deny me three times.” 62 And he went out and wept bitterly. Luke 22:54-62 (ESV)
25 The fear of man lays a snare . . . Proverbs 29:25 (ESV)
16 Simon Peter replied, “You are the Christ, the Son of the living God.” Matthew 16:16 (ESV); John 6:68
5 And throwing down the pieces of silver into the temple, he departed, and he went and hanged himself. Matthew 27:5 (ESV)
16 He said to him a second time, “Simon, son of John, do you love me?” He said to him, “Yes, Lord; you know that I love you.” He said to him, “Tend my sheep.” John 21:16 (ESV)
32 but I have prayed for you that your faith may not fail. And when you have turned again, strengthen your brothers.” Luke 22:32 (ESV)
23 this Jesus, delivered up according to the definite plan and foreknowledge of God, you crucified and killed by the hands of lawless men. 24 God raised him up, loosing the pangs of death, because it was not possible for him to be held by it. Acts 2:23-24 (ESV)
10 For the sake of Christ, then, I am content with weaknesses, insults, hardships, persecutions, and calamities. For when I am weak, then I am strong. 2 Corinthians 12:10 (ESV)