From the November 10 edition of Fox Business' Republican Presidential Candidates Debate:
NEIL CAVUTO (MODERATOR): First off, Dr. Carson, to you. You say you are in favor of a tax system, I guess akin to tithing, sir, with a flat tax rate of up to 15 percent because you said, if everybody pays this, I think God is a pretty fair guy. So tithing is a pretty fair process. But Donald Trump says that is not fair, that wealthier taxpayers should pay a higher rate because it's a fair thing to do. So whose plan would God endorse then doctor?