Luke 22:54-62. After being broken through personal failure and then graciously restored by grace, Peter is able to strengthen the brethren, stir up the saints and feed the sheep. God never condones failure, but He certainly uses it in our lives to grow and mature. 

John 13:23 & various scriptures. John never referred to himself by his actual name in his gospel, but gave himself the title “the disciple who Jesus loved” 5 separate times. Peter’s confidence may have rested in his love for Christ, but John’s confidence rested in the fact he was loved by Christ. He was persuaded. […]