The book "Social Principles of Jesus" by the famous theologian and publicist Walter Rauschenbusch is a work that offers a new perspective on the science of Christianity and its influence on society. This book explores the Social Beatitude that Jesus Christ taught in his most famous message and which has profound implications for understanding justice, mercy, and social responsibility. The author analyzes Jesus as a social reformer, showing how his teaching about love, mercy and equality before God has a direct connection with contemporary problems and challenges of society. Rauschenbusch draws attention to the importance of implementing these principles in the everyday life of each person in order to build a fairer and more humane world. "The Social Principles of Jesus" is not only a religious book, but also an invitation to a deeper understanding of the ethical foundations of Christianity and their practical application to create a better society for all its members.