Luke 16:9-13

9And I say unto you, Make to yourselves friends of the mammon of unrighteousness; that, when ye fail, they may receive you into everlasting habitations. 10He that is faithful in that which is least is faithful also in much: and he that is unjust in the least is unjust also in much. 11If therefore ye have not been faithful in the unrighteous mammon, who will commit to your trust the true riches? 12And if ye have not been faithful in that which is another man’s, who shall give you that which is your own?

13No servant can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon.