Intellect and desire are combined by the function of the will. When God's word and desire are combined by the functin of the will this desire becomes good desire. This function of will is called free will and human responsibility is fulfilled. When satan's word and desire are combined by function of the will this desire becomes evil desire. This function of will is called licentious will and human responsibility is failed.
Good desire requires good joy and happiness through good action.
Evil desire requires evil joy and happiness through evil action. When someone commits sin, this person absolutely recieves punishment. Where there is sin there is punishment. There are two kinds of important laws. One is natural law which rules the natural world.