This is my commandment: love each other just as I have loved you. No one has greater love than to give up one’s life for one’s friends. You are my friends if you do what I command you. I don’t call you servants any longer, because servants don’t know what their master is doing. Instead, I call you friends, because everything I heard from my Father I have made known to you.
At the Last Supper, Christ was telling the disciples those things of greatest importance. It was His final opportunity to communicate the central values of the faith. “No longer do I call you servants,” He said, “for a servant does not know what his master is doing; but I have called you friends, for all things that I heard from My Father I have made known to you” (John 15:15). Finally, Christ said you are not servants. You know the Father’s heart. You know the inside story. You are friends. Perhaps beyond the revolutionary Christian mandate of service is that final revolution, the possibility of being friends. Friends are people who know each other, who care, respect, struggle and are committed through time. Christ’s mandate o~be friends is a revolutionary idea in our serving society. Why friends rather than servants? Perhaps it is because He knew that servants could always become lords but that friends could not. Professional servants may operate on the assumption that “you will be better because I know better,” but friends believe that “we will be better because we share in each others’ lives.” Servants are people who know the mysteries that can control those to whom they give “help.” Friends, on the other hand, are free to give and receive help from each other.
Robert Lupton, Compassion, Justice, and the Christian Life: Rethinking Ministry to the Poor, p. 67