What Comes First?

In Francis De Sales' Introduction to the Devout Life, he comments in regard to charity:

Just as it is the function of charity to enable us to observe all God's commandments in general and without exception, so it is the part of devotion to enable us to observe all God's commandments in gereral and without exception, so it is the part of devotion to enable us to observe them quickly and diligently.

This thought on charity's relationship to devotion brings up a reoccuring question I possess little clarity on. On one hand I can see what C.S. Lewis means Mere Christianity when he urges us to act with charity even when we are in a sense faking it. Lewis says this action is sure to bring genuine kindness that will begin to be a part of who we are, and will start to flow naturally from our person. Yet there is something so much more genuine and sincere about an individual whose charitable actions spring from the deepest, devoted part of their being, than a person doing kind things out of obligation.

Perhaps the need we observe in the world allows little time for our actions to spring from authentic devotion. Please, Lord, hurry so the outpouring of my life can spring from a devotion to the living water that, unlike my resources, is in no short supply.