When we think of the word wealth, we automatically think of money.  In the bible it talks about wealth but it is referring to true godliness with contentment.
We came into this world with nothing and we will leave this world with nothing.  True wealth like the bible talks about will never fade away.  But if you look at wealth that the world talks about it can be here today, gone tomorrow.

“Do not store up for yourselves treasures on earth, where moth and rust destroy, and where thieves break in and steal.  But store up for yourselves treasure in heaven, where moth and rust do not destroy, and where thieves do not break in and steal.  For where you treasure is, there you heart will be also.”
Matthew 6:19-21