Not a real Christian, but plenty of Catholics and others don't have a personal relationship with Christ. The collection of books were compiled over hundreds of years by carefully checking them against the books that were previously included. Books that were added by the Catholics disagree with the previous books, and even Catholics view them as secondary texts.
For example:
2 Maccabees 12:41–46 (KJV Apocrypha version)
"So they all blessed the ways of the Lord, the righteous Judge, who revealeth the things that are hidden: And so betaking themselves to prayers, they besought him, that the sin committed might wholly be put out of remembrance. Moreover that noble Judas exhorted the people to keep themselves from sin, forsomuch as they saw before their eyes the things that came to pass for the sins of those that were slain. And when he had made a gathering throughout the army of about two thousand drachms of silver, he sent it to Jerusalem to offer a sin offering, doing therein very well and honestly, in that he was mindful of the resurrection: For if he had not hoped that they that were slain should have risen again, it had been superfluous and vain to pray for the dead. ... Whereupon he made a reconciliation for the dead, that they might be delivered from sin."
It implies post-mortem atonement via sacrifices, contradicting Hebrews 9:27 ("it is appointed unto men once to die, but after this the judgment") and Ephesians 2:8–9 (salvation by faith, not works or offerings).