Peter turned around and saw behind them the disciple Jesus loved—the one who had leaned over to Jesus during supper and asked, “Lord, who will betray you?” 21 Peter asked Jesus, “What about him, Lord?” 22 Jesus replied, “If I want him to remain alive until I return, what is that to you? As for you, follow me.” 23 So the rumor spread among the community of believers that this disciple wouldn’t die. But that isn’t what Jesus said at all. He only said, “If I want him to remain alive until I return, what is that to you?” John 21:20-23 (NLT)

But the Helper (Comforter, Advocate, Intercessor—Counselor, Strengthener, Standby), the Holy Spirit, whom the Father will send in My name [in My place, to represent Me and act on My behalf], He will teach you all things. And He will help you remember everything that I have told you. John 14:26 (AMP)