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. You cannot serve God and money (mammon) (Luke 16:13).
“Jesus is saying here that your attitude towards and your use of wealth, resources, and money, shows who you worship. In this passage, He uses the term “mammon” or wealth. What is that? Money, yes, but the application is much broader than that. It can refer to your stomach, your ease, your sleep, your time, your sports, your pastimes, your worldly honors, your status, your influence, the praise of men, pleasure — and notice that Jesus does not say that we should not serve both God and mammon, but that we cannot serve both God and mammon. The point is, you are always going to love and worship and serve something or someone supremely and there will be no one who can vie with that supreme treasure. And Jesus is saying, “Where’s your treasure? Where is your spiritual vision focused? Who is your master? Who do you care about the most? Who do you love the most? Who do you treasure the most? It must be God,” Jesus says. And He turns to the Pharisees and He says to His disciples, “They say that they love God, but what they really love is money (Luke 16:14). Don’t be like that. Love God more than stuff.”