DAY 328 CHALLENGE “The pope is a sinful man who makes mistakes. Therefore, he can’t be infallible.” DEFENSE The premise of this challenge is true; the conclusion is false. The pope is a sinful man, but this does not lead to the conclusion that he can’t be infallible. Sinlessness—sometimes called impeccability—operates in a different sphere than infallibility does. Sinlessness is a quality pertaining to the moral order: It means not making a mistake in the sphere of one’s own moral behavior. Infallibility is a quality pertaining to the doctrinal order: It deals with not making a mistake…