For Real Christians vs. Loud Christians™, I use their own book in the sorting:
Matthew 25: 36-46
35 For I was hungry and you gave me something to eat, I was thirsty and you gave me something to drink, I was a stranger and you invited me in, 36 I needed clothes and you clothed me, I was sick and you looked after me, I was in prison and you came to visit me.’
37 “Then the righteous will answer him, ‘Lord, when did we see you hungry and feed you, or thirsty and give you something to drink? 38 When did we see you a stranger and invite you in, or needing clothes and clothe you? 39 When did we see you sick or in prison and go to visit you?’
40 “The King will reply, ‘Truly I tell you, whatever you did for one of the least of these brothers and sisters of mine, you did for me.’
41 “Then he will say to those on his left, ‘Depart from me, you who are cursed, into the eternal fire prepared for the devil and his angels.
42 For I was hungry and you gave me nothing to eat, I was thirsty and you gave me nothing to drink, 43 I was a stranger and you did not invite me in, I needed clothes and you did not clothe me, I was sick and in prison and you did not look after me.’
44 “They also will answer, ‘Lord, when did we see you hungry or thirsty or a stranger or needing clothes or sick or in prison, and did not help you?’ 45 “He will reply, ‘Truly I tell you, whatever you did not do for one of the least of these, you did not do for me.’
I consider that to be a pretty decent sorting mechanism for determining the difference between the two categories of “Christian”, speaking as my perspective as an outsider to your religion.
(My criteria for determining “Who Is A Jew?” is even simpler: Would the Nazis throw you into the gas chambers with my great-grandparents? If yes, welcome to the family.)
Not my intent; I’ve given variants on this spiel before, and that’s always been my response–that the more someone insists, loudly and publicly, that they are Christian, the less likely it is that their deeds follow that statement. It’s more targeted at the Conspicuous Piety Christians–the people busy screaming about keeping the Syrian refugees out of the US while simultaneously building nativity scenes featuring a Middle Eastern couple that were denied shelter. for a current events example.
