William Barclay said this of money:
Money in itself is neither good nor bad; it is simply dangerous in that the love of it may become bad. With money a man can do much good; and with money he can do much evil. With money a man can selfishly serve his own desires; and with money he can generously answer to the cry of his neighbor's need. With money a man can buy his way to the forbidden things and facilitate the path of wrongdoing; and with money he can make it easier for someone else to live as God meant him to live. Money brings power, and power is always a double-edged thing, for it is powerful to good and powerful to evil.
-From William Barclay's Letters to Timothy