Do you think we have a biblical and/or moral obligation to tithe, and if so, why do you think so? How do you decide how much to tithe?
If you don't tithe, do you give significantly to your church in other forms (time, talent, etc)?
I've been thinking about people who give to churches, and why some do (even if it causes strain to their budgets and schedules) and others don't (or give only a fraction of what they could manage).