It is as simple as it is difficult for man and woman to follow. It requires that the individual sublimate his innate drive to survive to what is beneficial for the whole. Naturally, if the individual loves the Father, then it must follow that he or she should also love their brothers and sisters. As most will readily admit, if you love your brother or sister you will not try to enslave them either physically or mentally. If you treat others as you would be treated, then many behaviors become wrong, but we will concentrate on slavery because when practiced among humans it is the antithesis of the new law.
Control is the essence of slavery.
It removes the option of free choice from the individual. If we truly love our fellow man we want him or her to have the same freedoms as we. Our Father wishes all of us to have freedom of choice. He does not compel any of his children to follow the new law, even though he could if he so desired. Freedom of choice is vital for his children's learning.