John 21 seems like an epilogue, or a "P.S.," tacked-on at the end of a letter. But it's not "tacked on." It is full of grace for all of God's children who are plagued with past failures and doubts about the future. That's all of us -- at least sometimes -- if we're honest. In this passage we find that God is full of grace for our broken pasts and has a plans-forward for our futures.