The Need for Perfection
49 Now John answered and said, “Master, we saw someone casting out demons in Your name, and we forbade him because he does not follow with us.” 50 But Jesus said to him, “Do not forbid him, for he who is not against us is on our side.” 51 Now it came to pass, when the time had come for Him to be received up, that He steadfastly set His face to go to Jerusalem, 52 and sent messengers before His face. And as they went, they entered a village of the Samaritans, to prepare for Him. 53 But they did not receive Him, because His face was set for the journey to Jerusalem. 54 And when His disciples James and John saw this, they said, “Lord, do You want us to command fire to come down from heaven and consume them, just as Elijah did?” 55 But He turned and rebuked them, and said, “You do not know what manner of spirit you are of. 56 For the Son of Man did not come to destroy men’s lives but to save them.” And they went to another village.
Luke 9:49-56
69 Now Peter sat outside in the courtyard. And a servant girl came to him, saying, “You also were with Jesus of Galilee.” 70 But he denied it before them all, saying, “I do not know what you are saying.” 71 And when he had gone out to the gateway, another girl saw him and said to those who were there, “This fellow also was with Jesus of Nazareth.” 72 But again he denied with an oath, “I do not know the Man!” 73 And a little later those who stood by came up and said to Peter, “Surely you also are one of them, for your speech betrays you.” 74 Then he began to curse and swear, saying, “I do not know the Man!” Immediately a rooster crowed. 75 And Peter remembered the word of Jesus who had said to him, “Before the rooster crows, you will deny Me three times.” So he went out and wept bitterly.
Mathew 26:69-75