Learning to be content

One of the greatest secrets found in the bible is learning how to, and becoming content. Paul speaks of this, but the fact he makes such a point of it(being inspired by the Holy Spirit) should highlight the fact that others then, and now didn't know how to be, or that they needed to learn to be...contentment. This does not in any way devalue the pursuit of other things, yet lays a foundation of the need for Gods grace being sufficient in all circumstances.