The heart of Christian ethics as conceived by Paul is to be people of the spirit. We no longer are what we once were. Our old nature, our ‘flesh’ as Paul puts it, is not just attracted to lawlessness but also legalism. And both are contrary to the spirit. So, to live as we now are, we must live as people of the spirit. The more of Him we have, the more His fruit of love, joy, peace, patience and all the rest will grow in us.