I think, as a chef and restaurateur, that you have to take care of your business. Otherwise, you're only as good as your last meal. You have to watch if your food costs are too high, or you could be out of business in no time.
But if you have a solid walk with the Lord, then you won't fear that failure.
But Jesus changes your attitude towards yourself and towards other people.
Financial support is one thing, but I always think what becomes really sacrificial is your time.