Luke 16:13

No servant can serve, &c.— "Beware of indulging even the least degree of covetousness, for it is absolutely inconsistent with piety; insomuch that a man may as well undertake at one and the same time to serve two masters of contrary dispositions and opposite interests, as pretend to please God, while he is anxiously pursuing the world for its own sake." In this manner did our Lord recommend the true use of riches, power, knowledge, and the other advantages of the present life, from the consideration that they are not our own, but God's; that they are only committed to us, as stewards, to be employed for the honour of God, and the good of mankind; that we are accountable to the proprietor for the use we make of them, who will reward or punish us accordingly; and that every degree of covetousness is such a serving of mammon, as is really idolatry, and altogether inconsistent with the duty that we owe to God.