You donโt have to know a lot of things for your life to make a lasting difference in the world. But you do have to know the few great things that matter, perhaps just one, and then be willing to live for them and die for them. The people that make a durable difference in the world are not the people who have mastered many things, but who have been mastered by one great thing.
John PiperMarriage is not mainly about prospering economically. It is mainly about displaying the covenant keeping love between Christ and his Church
John Piper