Actually, Israel was only forbidden to charge interest to other Israelites. There was no moral opporbrium attached to charging foreigners interest. There was also no immoral fed creating fiat paper money on a fractional reserve system, thus inflating prices to the point that less than 4% interest on a loan is actually losing money.
Biblical economics is not his strong suit.
Indeed so, and from that arose the caricature of the Jewish moneylender. What they gained in gold they lost in image.