Two Masters?

From the Pope's homily from Sunday, September 23rd, 2007, on the Parable of the Unjust Steward:

But what does Jesus wish to tell us with this parable? And with its surprising conclusion? The Evangelist follows the parable of the dishonest steward with a short series of sayings and recommendations on the relationship we must have with money and the goods of this earth. These short sentences are an invitation to a choice that presupposes a radical decision, a constant inner tension. Life is truly always a choice: between honesty and dishonesty, between fidelity and infidelity, between selfishness and altruism, between good and evil. The conclusion of this Gospel passage is incisive and peremptory: "No servant can serve two masters; for either he will hate the one and love the other, or he will be devoted to the one and despise the other".
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If loving Christ and one's brethren is not to be considered as something incidental and superficial but, rather, the true and ultimate purpose of our whole existence, it will be necessary to know how to make basic choices, to be prepared to make radical renouncements, if necessary even to the point of martyrdom. Today, as yesterday, Christian life demands the courage to go against the tide, to love like Jesus, who even went so far as to sacrifice himself on the Cross.