You cannot serve both God and Mammon

"Mammon" is material "success" personified, the idol god of wordly "success," the worldly man's natural approach to fame and fortune, the love of Money. Jesus was offered a choice between serving God or Mammon when He was tempted by Satan who offered Jesus all the kingdoms of the world if He would just fall down and worship him, committing to serve him, that is, to serve Mammon. Satan is Mammon, serving Mammon is Satanism. Greed is idolatry, idolatry is demon worship, the love of Money is the root of all kinds of evil.