Why should Christians practice humility and serve one another?

Jesus' act of washing the disciples' feet serves as a model for Christians, calling us to practice humility and serve one another. In John 13:14-15, He instructs His followers to wash each other's feet, which points to a lifestyle of servanthood and love. This principle not only fosters unity within the body of Christ but also reflects the heart of the gospel—an acknowledgment of our own need for grace and a willingness to extend that grace to others. Christians are reminded that true greatness is found in humble service, as they follow the example set by their Lord.