Most churches collect tithes to pay salaries, utility bills, maintenance and repairs, the pastor's Bentley payments, etc. Churches require their flock to voluntarily drop one tenth of their annual income into the collection plate.
Skeptical parishioners can demand an accurate accounting of where their tithes go if they suspect improper record keeping. That's how parishioners discovered Rev. Peter Miqueli stole over $1 million from the collection plate to finance his fantasy homosexual lifestyle.