“One filled with joy preaches without preaching.”
I think that there is a certain joy that befits a true Christian. I would even say that it not only befits the true Christian–it is essential for him to possess. Without that certain joy it is evident that a Christian does not have faith or hope or love–the crucial virtues for one who follows in Christ’s footsteps.
I have seen people who have fallen off the path of faith. The lack of joy in them is very evident. Whether they have fallen off the path to the left or to the right, it is obvious they are missing something vital.
When I look at myself I wonder whether I contain that joy. Sometimes I allow the faith to seem a drudgery instead of a gift. It is important for me as a Christian to know my faith so that I can preach it to those around me.
I think this joy that Mother Teresa speaks of is just as important as knowledge of the faith, or even more important. In fact, I think this joy naturally flows out of a person who truly knows their faith. This knowledge can’t be just an academic knowledge; it must be more. It must be believed wholeheartedly, it must be lived out, it must be tested and it must have withstood the trials of life.
The soul that is on fire with the faith, that exudes this joy, cannot help but reap a great harvest by the Spirit working within it. “Joy is a net of love in which you can catch souls.” -Mother Teresa.