The Dutch Oven Banking System. Where "Oven" stands for "Open". And "Dutch" is a reference to a holy city next to Amsterdam and Rotterdam. Namely, Jerusadam. I'm sure your followers won't notice anything wrong.
Churchgoers make investments in your church, and wire you the money so they can invest in "heaven stocks". Have a software imitate the behaviour of actual stocks so they believe something is actually happening to the money. Of course, heaven doesn't really the money, so you can use it with their permission, and you can say your wealth comes from your own investments.
How about now?
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