The state has the task to organize the living together of humans as well as possible. Everyone should exercise the activity, which he or she can do best.
The state is a logical consequence of the practice of power.
Welfare state theory
The state has to provide welfare for its citizens.
The state is based on an original establishment by contract.
The state has to establish the rule of God on earth.
The state serves the collective well-being, thus well-being of the public.