Here's the first place the Old Testament refers to someone as wealthy: "Now Abram was very rich in livestock, silver and gold".
Well, here's a couple of basic comments:
- Silver and Gold have been money for thousands of years.
- Silver and Gold are not the only forms of wealth. In this case, we have "livestock", which is the basic "capital" or wealth-producing, cash-flow generating infrastructure for a traveling nomad.
- To me, it is interesting that silver is mentioned before gold. I would think that this is because silver was used for everyday transactions while gold was a long-term store of wealth, but I may be reading my own thinking into the passage.
It is interesting that Abram got his wealth in Egypt which he went to outside of the direction of the LORD (probably contrary to the LORD's will even though the LORD protected him there). He got the wealth thru a deception which endangered his wife (see Genesis 12 for a story that might make the Drudge Report today). So, even from the very earliest reference, becoming rich has been morally questionable.