Ultimately, Christianity is a system of truth, not a set of practices where we go through the motion every Sunday. Christianity is not the sum of behavior and actions of its adherents – especially those who are not acting according to its truth claims. Christianity, as a religion, does make certain claims about the cause, nature and purpose of the universe including: God physically raised Jesus from the dead, putting a divine [imprint] on his proclamations about the way things are.

                                                                                            – Brian Hearn (Apologetics.net)