Question: "Why did Jesus ask Peter 'Do you love me?' three times?"
Answer: Jesus asked Peter three times,“Do you love me?” as recorded in John 21:15–17. This occurred when Jesus was having breakfast with His disciples soon after His resurrection. Jesus used this opportunity to encourage and exhort Peter about his upcoming responsibilities and even to prophesy the manner in which Peter will die. By asking Peter, “Do you love me?” three times, Jesus was emphasizing the importance of Peter’s love and unswerving obedience to his Lord as necessary for his future ministry.
Jesus begins by questioning Peter about His love for Him, and each time Peter answers in the affirmative, Jesus follows up with the command for Peter to feed His sheep. His meaning is that, if Peter truly loves his Master, he is to shepherd and care for those who belong to Christ. His words reveal Peter’s role as the leader of the new Church, the Body of Christ there in Jerusalem that will be responsible for spreading the gospel after Jesus’ ascension into heaven.
It is possible that by His repeated question Jesus is subtly reminding Peter of his three denials. There’s no doubt those denials and how he felt when Jesus turned to look at him at that moment were seared deeply into Peter’s mind (Luke 22:54–62). It wasn’t lost on Peter that Jesus repeated His question to him three times, just as Peter previously denied Him three times.
There is also an interesting contrast when you look at the Greek words for “love” used in John 21:15–17. When Jesus asked Peter, “Do you love me?” in John 21:15–16, He used the Greek word agape, which refers to unconditional love. Both times, Peter responded with “Yes, Lord; you know that I love you,” using the Greek word phileo, which refers more to a brotherly/friendship type of love. It seems that Jesus is trying to get Peter to understand that he must love Jesus unconditionally in order to be the leader God is calling him to be. The third time Jesus asks, “Do you love me?” in John 21:17, He uses the word phileo, and Peter again responds with “Lord, you know everything; you know that I love you,” again using phileo. The point in the different Greek words for “love” seems to be that Jesus was stretching Peter to move him from phileo love to agape love.
Whatever the reason for the three-fold “do you love me?” question, Jesus was impressing on Peter how important his new role of tending the flock of Christ’s followers would be. When someone repeats instructions to us over and over, we quickly understand that it’s extremely important for us to heed them. Jesus wanted to make sure Peter understood this vital charge He was tasking him with and the ultimate reason for it, to follow Him and glorify God (John 21:19).