Luke 16:13 - Joseph Benson’s Commentary on the Old and New Testaments

No servant can serve two masters See note on Matthew 6:24. As if he had said, You cannot be faithful to God, if you trim between him and the world; if you do not serve him alone. Beware, therefore, of indulging, even in the least degree, the love of the world, 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 Jesus 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 men: 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 idolatrous, and altogether inconsistent with the duty we owe to God.” Macknight.