John 21

3 The disciples were encouraged by Jesus' previous appearances, but they had no direction while they were waiting for the Holy Spirit as Jesus commanded them to (Luke 24:49). Peter decides to go fishing, and the others join him. It is unclear whether he is intending to go back to being a fisherman, finds fishing relaxing, or is just bored and wants to do something.
4 No one knew when or where Jesus would appear.
6 This is very similar to the event recorded in Luke 5:4-10 early in Jesus' ministry. Jesus wants the disciples to not only remember Him, but to carry on the mission He gave them from the beginning.
7 John remembers the event and immediately recognizes that the stranger on shore is really Jesus. Peter became so excited that he swam for shore rather than wait for the boat to take him there.
8 The first time this happened, the disciples nearly sunk their boats when they tried to haul the nets aboard. This time it appears they dragged the net to shore because their boat was too small to hold the catch of fish.
9 When the disciples came ashore, Jesus had already made a fire for cooking. John does not say where Jesus got the fish and bread.
11 Peter, again full of energy, drags the net ashore. While the fish are cooking, the disciples find a large catch of large fish, yet by some miracle the nets were not broken.
12 Jesus did not introduce Himself, nor did the disciples ask who He was. It sounds like some of them still had trouble believing that Jesus was resurrected, yet here He was, obviously alive and with them.
15 Peter had denied Jesus during His trial, and he may have felt unworthy to continue to lead the disciples. Jesus takes him aside for a special consultation to encourage him.

Jesus' question is about Peter's love for Him. Jesus asks using the Greek word agape. This means an unconditional love (the highest form). Peter replies with the word philio, which means a friendship kind of love. Jesus then responds with a command, indicating that if Peter loves Him, he will obey and complete the assignment he has been given.

Jesus asked Peter to compare his love for the other disciples (and/or his fishing occupation) to Him. Each Christian is to love Jesus more than any other person, activity, or thing.

Jesus specifically tells Peter to "feed" his lambs. This means that Jesus wants Peter to teach new believers. Peter may have felt inadequate after his failures, but Jesus commands him to do so anyway.

16 Jesus asks a similar question and gets a similar response. This time Jesus adds tending, or shepherding, the sheep. This is more of an administrative role and involves "older" Christians. Peter was to lead the disciples after Jesus' departure.
17 The third time, Jesus uses the word philio. In a sense, He is asking if Peter is His friend. Peter is both saddened and frustrated at being asked this question again. Jesus then commands Peter to feed His sheep. This means that He wants Peter to teach older believers.
19 Jesus prophesies that Peter will one day be taken prisoner (lose his freedom) and executed (lead where he does not want to go). Yet, even in knowing this Peter was to follow Jesus.

Christians generally do not know what will happen to them in their lives. However, Jesus repeatedly indicates that the Christian will suffer in the hands of unbelievers. For some, the price is higher than for others. We, however, are to continue to follow Jesus. We are comforted in the knowledge that God sees, hears, and cares. We also have the hope of eternal life with God where sin, pain, and sorrow cease to be a problem. The trip may be difficult, but it is worthwhile.

21 Peter was probably unhappy with the content and ending of this conversation. Would Jesus question others about their loyalty? Would others also be imprisoned and killed? Since John, the disciple whom Jesus loved, was following close behind them, he is a convenient subject for discussion.
22 We are not to be concerned about the specific callings in other peoples' lives. We are to be concerned about what God has told us to do. We are not to compare the "quality" of our lives with those of other believers. Some Christians are martyred while others die of old age. Only God can judge what the appropriate circumstances are for each believer's life and death.
23 John lived the longest of all the disciples. The other ten were martyred. Only John died of old age. To some, it may have seemed that John would live until Jesus returned, but this was not a guarantee from Jesus. It is interesting to note that John did see Jesus' return as recorded in Revelation.
24 The author identifies himself as the disciple that Jesus loved. He saw these things and wrote them down as a testimony for others. This is believed to be the last book written in the New Testament. John may have recorded these things after the vision in Revelation when it became clear that he would not live until Jesus' return. Without living witnesses, John felt it important to record his testimony for future generations.
25 A biography can not possibly contain all the details of a person's life. Jesus did so many things that there was neither the time nor paper on which to write them all down. John chose seven specific miracles, several of Jesus' teachings specifically pointing to His deity, and a few of His encounters with people to support the case that Jesus is the Son of God (John 20:31).