“Obedience sums up our entire duty”
When we obey orders our deed is done and fullfilled. In a religious way, when we do what god asks of us, we then fullfill our duties as his children on earth. When we do not we are not fullfilling ourselves or our duty. When we obey and do what is asked from us from our parents we do our duty and we feel much better and they are happy because of it so they are happy with us. There’s a whole lot less problems when you just listen to your parents.