It is impossible to serve both God and Mammon. This is one of those hard sayings in the gospel that often causes people to go away sad. Material wealth seems like such an important part of happiness here on Earth that the cost of giving it up for Christ seems intolerable. Money secures so many basic human goods: freedom, choice, social status, dignity, self-respect, the ability to provide for others, and even life itself. Poverty may be a virtue:...