In his book Don't Waste Your Life, John Piper recounts a story his father often told in his days as a fiery Baptist evangelist. It is the story of a man who came to saving faith in Jesus Christ near the end of his earthly existence. Piper writes:

The church had prayed for this man for decades. He was hard and resistant. But this time, for some reason, he showed up when my father was preaching. At the end of the service, during a hymn, to everyone's amazement he came and took my father's hand. They sat down together on the front pew of the church as the people were dismissed. God opened his heart to the Gospel of Christ, and he was saved from his sins and given eternal life. But that did not stop him from sobbing and saying, as the tears ran down his wrinkled face, "I've wasted it! I've wasted it!"

By the grace of God, even a life that is almost totally wasted can still be redeemed. As the Scottish theologian Thomas Boston once said, our present existence is only "a short preface to a long eternity." If that is true, then the man's life was not wasted after all; he was only just beginning an eternal life of endless praise. But why wait even a moment longer before starting to serve Jesus? You have only one life to live. Don't waste it by living for yourself when you can use it instead for the glory of God.