Harvard Professor Robert Putnam says that given a choice of how many close friends we have--the most common answer today is zero. We've slowly and steadily become a nation of lonely people. Today we study the friendship of Jonathan and David, one of the most meaningful relationships in the Bible. One of the greatest traits of a meaningful relationship is to serving and sacrifice. Only there's a twist. Being served by others doesn't cure loneliness, the only way to cure loneliness is a two-way relationship, it's give and take.