'There is an old saying: Give someone a fish and you feed them for a day; teach someone to fish and you feed them for life. Paul's normal practice, in teaching his converts, is the latter. His version of the saying seems to be: Give people a command for a particular situation, and you help them to live appropriately for a day; teach them to think Christianly about behavior, and they will be able to navigate by themselves into areas where you haven't give any specific instructions.'
Tom Wright, Virtue Reborn, p.171.