A popular joke about religion is:
 
“Jews don’t recognize Jesus, Protestants don’t recognize the Pope, and Baptists don’t recognize one another in the liquor store.”
 
The joke has been cited in print since at least 1991.
 
   
Google Books
Hometown Humor, USA:
More than 300 jokes from the porch swings, barber shops, corner cafés, and beauty parlors of America
By Loyal Jones and Billy Edd Wheeler
Little Rock, AR: August House Publishers
1991
Pg. 111:
Recognition
“You know how Jews don’t recognize Christ?”
“Yeah.”
“And how Unitarians don’t recognize the Trinity?”
“Yeah.”
“And how Baptists don’t recognize one another in a liquor store?
Hope Coulter
LITTLE ROCK, ARKANSAS
 
Newspapers.com
4 March 1995, Hood County News (Granbury, TX), pg. 4:
Jews don’t recognize the birth of Jesus Christ, the Church of Christ don’t recognize dancing and Baptists don’t recognize each other in the liquor store!
 
Google Books
Prairie Home Companion
Pretty Good Joke Book
By Brian Becker
Minneapolis, MN: HighBridge
2003
Pg. 108:
Jews don’t recognize Jesus, Protestants don’t recognize the Pope, and Baptists don’t recognize one another in the liquor store.
   
Google News Archive
5 December 2006, The Daily Reporter (Spencer, IA), “Guest Column” by Argus Hamilton, pg. 4, col. 1:
The Protestants don’t recognize the pope; the Muslims don’t recognize the Jews; the Jews don’t recognize Christ; and the Baptists don’t recognize each other at Hooters.
 
Google Books
Underage Drinking
By Norah Piehl
Farmington Hills, MI: Greenhaven Press
2010
Pg. 59:
We do live in the Bible Belt, after all, where the joke is that Jews don’t recognize the Messiah, Protestants don’t recognize the Pope, and Baptists don’t recognize each other in the liquor store..
 
Twitter
RUTH BUZZI
‏@Ruth_A_Buzzi
The Catholics don’t recognize the Episcopals; The Jews don’t recognize the Muslims; Southern Baptists don’t recognize each other in Hooters.
8:11 AM - 17 Mar 2011
 
Twitter
TreeDrTodd
‏@treemantodd
Region 101:
Methodists don’t recognize the pope
Catholics don’t recognize Muhammad
Baptists don’t recognize each other (at the bar)
10:40 AM - 28 Oct 2012
 
reddit
Religion is all about who you DON’T recognize….. (self.Jokes)
submitted March 19, 2013 by Kurius
Jews don’t recognize Jesus as the son of God, Protestants don’t recognize the Pope, and Baptists don’t recognize each other in the liquor store.
   
GetReligion
April 17, 2015
In reporting on Baptists, bootleggers and beer, why not talk to some actual Baptists?
Bobby Ross Jr.
There’s an old joke that Jews don’t recognize Jesus as the Messiah, Protestants don’t recognize the pope as the leader of the Christian faith, and Baptists don’t recognize each other at the liquor store.