This book draws attention to what it means for Christians to love one another. This is the missing 'mark of the church' that renders our proclamation so weak and our message less then credible. Based on the 'one-another' commands of the New Testament, successive chapters explore what it means to belong to, welcome, put up with, love, serve, be kind and compassionate to, live in harmony with, submit to, support, teach and admonish, and encourage one another.