There are many Christian denominations whose devotees practice abstinence: Mormons, Amish, Methodists, Quakers, 7th-day Adventists, Mennonites, Salvation Army members, and there are probably more that I can’t think of. But not all preach abstinence, including Roman Catholics. Jesus himself turned water into over a hundred gallons of wine (John 2:1-11), seemingly to encourage its use at a wedding.
St. John The Baptist was big on fasting, and abstaining from wine. In fact, the angel Gabriel prophesied that he was to never drink alcohol his whole life. He seemed to have spent much of his adult life in wilderness, subsisting on a diet of locusts and honey. I would suppose he was a bit of a wild-man.
Reverend Jerry Falwell (1933-2007), as you might remember, was a fundamentalist preacher who led an organization called the Moral Majority in the States during the Regan era. A bit of a prankster, had a life with more than enough strange twists and turns. The fact that he was teetotal was influenced by his alcoholic father dying of liver disease. Strangely he was friends with Larry Flynt, publisher of Hustler magazine. Flynt published a rather racy parody about Falwell, to which Falwell objected and sued him all the way to the Supreme Court. The court rejected the lawsuit, and upheld Flynt’s free speech rights. While Falwell and Flynt didn’t agree on anything relating to the lawsuit, they nevertheless became friends. Larry was lending him his jet in case Jerry’s broke down; they traded photos of their grandchildren; diet tips, … You never know how things turn out, do you?