To put it very briefly, God does not want us to serve money and possession. Nor does He want us to worry. But He does want us to work and leave the worry to Him. Let him who has possessions be the master of those possessions. He who serves is a servant and does not have the possession, but the possessions have him. ..But if he is master of the possessions, the possessions serve him, and he does not serve them.
Martin Luther, What Luther Says, page 976.
Wayne Knolhoff, Director of the Center for Stewardship at Concordia Seminary, St. Louis, Missouri.