What is the slogan of Liangshan heroes for heaven?

Do justice for heaven, eliminate violence and be peaceful.

In the Water Margin, the banner of Liangshan hero is "to do justice for heaven". This slogan has profound significance in the social background at that time. At the end of the Northern Song Dynasty, government corruption, people's poverty and peasant uprisings broke out one after another. Liangshan hero, as a rebel, took "upholding justice for heaven" as the slogan, expressing his dissatisfaction and resistance to court corruption and his pursuit of social justice. They believe that God has given them a just mission to eliminate violence and uphold justice for the people. Therefore, under the banner of "doing justice for heaven", they called on more people to join them and fight against the corruption and oppression of the imperial court.