Tithing -- the response to the biblical exhortation of returning to God 10% of his gifts -- may be common in some denominations, but in most American churches it remains a rare practice. Researchers ...

Question: We're 71, retired, and have an $8,000 monthly income. I want to travel to Europe while we still can, but my wife believes tithing (or donating 10% to our church) is her religious duty. I ...