What are we to say, then? That Law and sin are the same thing? Heaven forbid! On the contrary, I should not have learned what sin is, had not it been for Law. If the Law did not say 'Thou shalt not covet,' I should not know what it is to covet.

The commandments, 'Thou shalt not commit adultery, Thou shalt not kill, Thou shalt not steal, Thou shalt not covet,' and whatever other commandment there is, are all summed up in the words--'Thou shalt love thy neighbor as thou dost thyself.'