Faithful or Just Forgetful?

Well, I have to be honest. This past Sunday I debated whether I should go ahead and pay my tithe and faith promise money, knowing that after doing so, I wouldn't have enough left in my bank account to pay my monthly loan payment. But, knowing that God is faithful, I turned the check in, praying that there would be some sort of miracle. Well, yesterday, while I was at work, my manager was counting the safe. She then said, "Adam, you know you still have a check in here, right?" Apparently, I never went to pick up my check that I was supposed to get three weeks ago! That's not something I would normally do, especially since I'm a poor Master's student. So is it my fault that I forgot to pick up my check? Or is it because God takes care of those who love Him? I like to think it's the latter. It makes me feel better.