How we handle our money is a spiritual issue. In 1 Timothy Paul says "For the love of money is the root of all kinds of evil. Some people, eager for money, have wandered from the faith and pierced themselves with many griefs." Even if you haven't "wandered from the faith," its absolutely possible that you have "pierced yourself with many griefs" based on how you have handled money.
Money is a spiritual issue (like so many other areas of life) because it can either lead to a life of holiness and generosity or a life of fear, worry, jealousy, anger and pride.
The church I am a part of is offering a class this Fall dealing specifically with money from a spiritual perspective. Its about so much more than setting a budget and living within your means, its about your relationship with God and how that effects your relationship with money. Its called Financial Peace University and you can go here to learn more and sign up.
Maybe the statement I should have started this post with is this: "The way we handle God's money is a spiritual issue. Afterall, he gave us the money, we're just stewards of it. Money is a gift from God and if we are good at something, its at screwing up God's gifts to us. So many of us have screwed up God's gift of money and it has led to anger, frustration, jealousy, fear and worry.
May we use God's gift of money wisely so that we get back to recognizing it for what it is: a gift.