As long as Jesus has had followers, people have wondered whether to quit. One of the first to wrestle with that decision was Peter. He came up with a question that clarifies all kinds of decisions in every walk of life. But it's especially useful for people who are trying to decide whether to quit following Jesus. Pastor Luke preaches from John 6:51-69 in "Bread of Life," part 4 of his 6-part series, "Discipleship."