According to knowyourmeme.com, this stock character meme is part of "an image macro series based on an advertising campaign for Dos Equis beer. The captions typically follow the phrasal template “I don’t always X, but when I do, I Y.'” This comes from the commercial's slogan, “I don’t always drink beer, but when I do, I prefer Dos Equis." The man in the image is actor Jonathan Goldsmith, who starred in the commercial. This collection of memes is not religiously-based.