For us to obey God's will, we must live a good life and obey his commandments. Obeying him shows that we believe that his ways are pure more than the life we live. Those who choose to obey God must listen to his words and follow his path even though is not easy.
If we follow the ways of God, it shows how we love him. You can't love someone then go against his/her wish. Obedience is not all about following rules, it is all about showing how you love and the person.
The ways of God are not hard to follow if only we can ask for his grace and companionship in our day to day lives. The devil came to earth to make sure that we follow his own way.