A tablet from the 6th century BC succeeded in revealing the giant six-level Ziggurat which became known as the Tower of Babel. According to the biblical text narrative in Genesis 11: 1-9, the construction of the Ziggurat was successful because the perpetrators were in one Babylonian language. If this theory is correct, then the concept of one language can be implemented in various lines of life so that all who are planned to succeed in its implementation with the involvement of all group members. To discuss, test these assumptions, and analyze the phenomenon of one language, research in the form of literature studies is carried out through this paper. The research aims to reveal the power of one language behind the success of the development, and at the same time, the irony of the destruction of the Babylonian Ziggurat. The Group Communication Theory and Critical Discourse are using analysis scissors. The results of the study show that one language can create unity and convergence for any purpose and design in a group or community. Even the unity of language builds internal filters within each person who is part of the community to distinguish good and bad information, which builds or breaks down positive or negative information because the unity of language plays a role in decision making and the formation of actions.