This one belongs to my wife. When she was growing up her church sang a song that went,"Everyday I'm camping, in the land of Canaan. I'm camping, I'm camping, in Canaan's happy land." She thought it went,"Everyday I'm cramping in the land of Canaan. I'm cramping, I'm cramping, in Canaan's happy land." Which begs the questions: Why were they cramping and how could they be happy?
A childhood belief about hymns

others believed things like this
- I used to think that
"The land of make believe"
was
"The land of baked beans."— Baked Bean! - I thought the England was EDGE-land but england was ENG-landAnon
- I used to believe the local Catholic church was Disney Land.— Sherri
- At one point, i thought that "Where the Sun Don't Shine" and "The Land of The Rising Sun" where the same thing— A. Brone E.
- I used to believe that Finland was in the end of the world. Fin-land.— Francesco Delvecchio, Roma/Italia
- i used to believe that 'island' was pronounced 'is-land' instead. I know im not alone on that one! :)
— Da KornMeal