I've been tithing on any income I've been getting this last year, whether it's my own earnings or not. My Dad sends me money for housing and stuff. I told my Dad I was tithing and he didn't like the idea. He says that since he tithes on his income already, that I shouldn't because that is tithing twice on the same money. I don't think it matters where my income comes from or if I'm going to be able to pay my bills when I give money. It's a faith thing imo and I need to trust God to provide my needs. I still think I should tithe. How should I explain this to my Dad? Thanks!