Nietzsche recognised that ascetic philosophies like Christianity manifest from the slaves of society who upon finding themselves enslaved label the virtues that the masters represent such as egoism, will, aggressiveness and beauty as evil and those virtues that the slaves hold such as compassion, meekness and equality as good to prevent themselves from hating themselves and assuage the resentment they feel towards the masters. What Christianity represented was an inversion of master morality (the dichotomy between good and bad) into slave morality (the dichotomy between good and evil). This Nietzsche claims has only weakened man because despite what slave morality claims man is essentially egotistical and be denying that one denys oneself and life itself. It's more of a genealogical and psychological argument which upon realising causes slave morality to fall apart.
Why Christianity?
John Henry Newman wrote the best work on christian doctrine, Essay on development of Christian Doctrine.
Lewis is a mediocre theologian and a horrible philosopher.
Thanks, Will look. Need me some religion.
I gave a larger list here
You clearly have never read the Bible
Paul is referring to the people of the Christian church. Once you joined, your outward appearance was irrelevant.
I think if you look at it like that it starts to bring you into a bunch of circular reasoning. I think christianity assumes that everyone "feels" god, but some choose to accept him and some choose to deny him. But if you look at it like a non-christian, like a materialist, then you are just a person, and if you don't feel something then you shouldn't force yourself to feel it.
Christianity states that the existence of God is so obvious (by observing His creation) that no one is without blame for not believing
Well I'm not a materialist, and I 'feel God.' I just don't see why it should be Jesus, besides cultural reasons.
All other religions suggest that you alone can earn your way to heaven/paradise through your "good" works. Christianity is the only religion, as far as I know, that claims that man is unable to earn heaven by himself.
I know this isn't necessarily a reason to follow Christianity over X religion, but it's something that separates it from all others.