Who says that government comes about as a voluntary agreement between the people and those that rule?

The idea that government arises from a voluntary agreement between the governed and their rulers is articulated by social contract theorists, notably Thomas Hobbes, john Locke, and Jean-Jacques Rousseau. They argue that individuals consent, either explicitly or implicitly, to form a government to ensure social order and protect their rights. This concept suggests that legitimate political authority stems from the consent of the governed.