As we think about the end of our life, whenever that may come, we want to hear those words from Christ, "well done, good and faithful servant."  As we think about our lives, our struggles with sin and temptation, we may find that we are unworthy servants.  Worthy to be called good, and faithful, and... worthy of eternal life.  This is where Christ steps in and is good and faithful on our behalf, and through His death and resurrection makes us worthy.  Worthy to be forgiven, worthy to receive eternal life, not because of anything we have done, but all because of what Christ has done.