As a culture develops, one thing that often occurs is

people with the same religions tend to become part of the same culture.

Religions most likely dictate the way of life that seem as acceptable to do for its followers.
This resulted in a development of moral standard that could be used to determine which actions are 'right' and which 'actions are wrong' ,which is the basic necessity for a culture to develop.

Freedom is the power or right to act, speak, or think as one wants without hindrance or restraint, and the absence of a despotic government. Freedom of expression includes freedom of speech, of the press, of association, of assembly and petition. it protects our right to life and to property. It does this by making and enforcing laws. The government creates laws, for example, that make it illegal to steal from us by force or bilk us out of our money by fraud.The real freedom is the freedom of mind. When our mind is free from all ideologies, persons and situations, then only there is real freedom. You can be free even when you are working in your office ten hours a day if your mind is free to take decisions and accomplish your goal by self-discipline and knowledge.