From the Mars Hill 'stewardship' page.
"WHY DOES MARS HILL TALK ABOUT MONEY SO MUCH? Quite simply, we do because Jesus did. Jesus devoted roughly 25 percent of his words in the Gospels to the resources God has entrusted to our stewardship. This includes some 28 passages in the Gospels. In the Old and New Testaments combined there are over 800 verses on the subject, addressing topics ranging from planning and budgeting, to saving and investing, to debt and tithing. Furthermore, money and wealth and possessions are among the greatest idols in our culture, and there is simply no way to be a disciple of Jesus apart from learning to worship God with stewardship."
"Jesus stressed that we either worship our wealth, or we worship with our wealth. In Matthew 6:24 he said, No one can serve two masters, for either he will hate the one and love the other, or he will be devoted to the one and despise the other. You cannot serve God and money."