Many might not believe this but most religious people's secrets to their financial success are tithes and donations. Since they believe in the promise of God written in the bible. But on top of these, I believe the secret is how one manages their finances. If we have lots of incoming money, but failed to manage them correctly we can still end up broke. Money management I believe is the secret to wealth.
There is a sense in the religious inclusion that you have made and it is very correct to say that if you look at the bible where God promise the benefits of giving tithes and offerings which is used to maintain the temple of God. So many religious people understand and follow such doctrine having them to believe that once they keep to that, every endeavour to go into will flourish. If this is done then a little water can become an ocean after all God used 5 fish to feed multitude of people. The miracle of the old still exist, so managing your fiance is not just the issue but being properly guided.
You guys are all right, there must be a double check approach to ensure that what we do is making profits for us and we should ensure that we back it up with the two significant suggestions which is the religious tithing believe and the business ethics models and principles of running a successful business, career and enterprises, when we see things are working out the way they ought to be, it's a clear indication that they are doing what is meant to be done for the required outcome they see in whatever they do, they wouldn't tell anyone about their secrets except you ask.