Obedience can be defined as<em> "compliance with an order, request, or law or submission to another's authority"</em>. Stefan is compliant towards his own mother. He follows her rules. Therefore, logically, Stefan is obedient to her.
Obedience is when a person follows rules or laws and attend it in submission to one another, which can be a system or some authority as such as: eg. the parents, God or government representants.
Obedience is the observance and compliance of doing what has been request or said to be done.