During the Last Supper, Jesus told His disciples He was giving them a new commandment: "As I have loved you, so you must love one another" (John 13:34). This instruction provides the basis for Dave Greber's The Lost Commandment: Have We Missed What Jesus Really Wants?
Although the commandment is solely documented in the Gospel of John, Greber presents a strong case for Christ's intent of the "new" commandment replacing what is now known as the Golden Rule. He contrasts the meanings of the two commands, arriving at the one he feels more in character with Christ's message of unconditional love.