“No one can serve two masters;...You cannot serve God and mammon.”

“And when you pray, you shall not be like the  hypocrites. For they love to pray standing in the synagogues and on the corners of the streets, that they may be seen by men. Assuredly, I say to you, they have their reward. But you, when you pray,  go into your room, and when you have shut your door, pray to your Father who is in the secret place; and your Father who sees in secret will reward you  openly. And when you pray,  do not use vain repetitions as the heathen do.  For they think that they will be heard for their many words. “Therefore do not be like them. For your Father  knows the things you have need of before you ask Him. In this  manner, therefore, pray: Our Father in heaven, Hallowed be Your  name. Your kingdom come. Your will be done On earth  as it is in heaven. Give us this day our  daily bread. And  forgive us our debts, As we forgive our debtors. And do not lead us into temptation, But  deliver us from the evil one. For Yours is the kingdom and the power and the glory forever. Amen. “For if you forgive men their trespasses, your heavenly Father will also forgive you. But  if you do not forgive men their trespasses, neither will your Father forgive your trespasses. “Moreover,  when you fast, do not be like the  hypocrites, with a sad countenance. For they disfigure their faces that they may appear to men to be fasting. Assuredly, I say to you, they have their reward. But you, when you fast,  anoint your head and wash your face, so that you do not appear to men to be fasting, but to your Father who is in the secret place; and your Father who sees in secret will reward you  openly. “No one can serve two masters; for either he will hate the one and love the other, or else he will be loyal to the one and despise the other.  You cannot serve God and  mammon.  Matthew 6:5-18,24 - NKJV