what does this quote by Baron de Montesquieu mean?

What, then is the government? An intermediary body established between the subjects and the sovereign for their mutual communication, a body charged with the execution of the laws and the maintenance of freedom, both civil and political.”

This quote means that the government serves as a link or intermediary between the people and the ruler, responsible for carrying out and enforcing laws to ensure the freedom of both individual citizens and the state as a whole.