It's best to rent, and have the rent be paid out of the weekly contributions. If the church no longer can hold its people, then it's time to dissolve it, and let the people go to where their spiritual needs are better satisfied
There is a lot of merit in renting, but it’s hard to run a full slate of programs out of a rental property. You also have to set up and break down every week, and most rentals don’t have satisfactory nursery facilities.