Phaedo

Christianity isn't one of many equally valid world views or philosophies that you can choose. There are philosophies that stem from Christianity, but that's just it- they stem from the already existing faith, it isn't the other way around, the faith isn't created out of the philosophy. So in Socrates case, he has beliefs that are similar to Christian ideas, but for him to claim something like what he says on page 339 "he who has lived as a true philosopher has reason to be of good cheer when he is about to die, and that after death he may hope to receive the greatest good in the other world" without the back up of Christianity is merely a bold statement he's made with no real solid basis or platform. It doesn't matter how close he is to Christianity if they are not actually based off of the Christian faith.