What Mammon is? Is it a god or simply another word for money?

It's both because money no more exists than does this 'mammon'. (They are both ideas that we consent to, thus giving the idea of money meaning, and it begins to 'work' in a system designed to have it as its basis. This system them becomes the man-made god, mammon.)

Jesus linked the two in Luke 16: 9-31 where he gave parables about the dangers of becoming enslaved to gaining wealth and money. Verse 14 says, "And the Pharisees also, who were covetous, heard all these things, and they derided him". Jesus then went on to give the parable of the rich man and Lazarus - the one where the rich man ends up in hell. This is an incredibly serious issue.

Jesus says that love of money cannot go alongside love of God. He compares true riches with "the unrighteous mammon" (vs. 11). "Ye cannot serve God and mammon." (vs. 13.) Money is just an idea that replaced bartering. Coins are amalgums of metal. Notes with $ or £ signs on etc are just pieces of paper. Gold ingots are just bars of gold. Ditto for silver. We ascribe meaning and value to such objects because of this idea of money replacing bartered goods. But when this idea of money becomes that which we live for, long for, and accumulate greedily, we have turned money into the false god, mammon.

According to the bible (which also says, paradoxically, that "there is only one god"), Mammon is another god, the god of riches and avarice...

"Lay not up for yourselves treasures upon earth, where moth and rust doth corrupt, and where thieves break through and steal: But lay up for yourselves treasures in heaven, where neither moth nor rust doth corrupt, and where thieves do not break through nor steal: For where your treasure is, there will your heart be also.

No one can serve two masters, for either he will hate the one and love the other; or else he will be devoted to one and despise the other. You can not serve both God and Mammon."

Mammon is gain done by unlawfully or through lies and deceit, lust, greed, strife. We see this in today's politicians, corruption in the work place, everywhere.

It's a substitute for human nature.

it means wealth or avarice

Definition of AVARICE

: excessive or insatiable desire for wealth or gain : greediness, cupidity