16He asked him a second time, “Simon, son of Jonah, do you sincerely love me?” He answered, “Yes, Lord. You know that I love You.” “Shepherd my sheep,” He replied.
17He asked the third time, “Simon, son of Jonah, do you love me?” Peter was grieved because He asked him the third time, “Do you love me?” He answered, “Lord, You know everything. You know that I love You.” “Feed My sheep,” Jesus replied.
John 21
John 21:16-17