The reason use of money and the things it buys is one of the best indicators of spiritual maturity and Godliness is that we exchange such a great part of our lives for it. Because we invest most of our days working in exchange for money, there is a very real sense in which our money represents us. Therefore, how we use it expresses who we are, what our priorities are, and what’s in our hearts. As we use our money and resources Christianly, we prove our growth in Christlikeness.
Donald S. Whitney