There's a song called "Take It All" by a group called Hillsongs United. A friend and I were singing this song in the car the other day. One of the lines is "Jesus, we're living for your name; we'll never be ashamed of you.... Our praise, and all we are today.... Take, take, take it all! Take, take, take it all!!"
Well, my mom was driving, and she turned around in her seat to stare at us and gave us this "WTF???" look.
Turns out that she'd misheard "take it all" as "Take, take, take it OFF!!!" My friend and I laughed so hard that we cried. Poor Mom...
A childhood belief about hymns

others believed things like this
- I use to think that Bruce Springsteen's song "growing up" was called "throwing up"— glowworm
- I used to think the song Bette Davis Eyes was called 'she's got better days besides'.— JJ Simpson
- My friend thought butterfly was actually called a 'flutterby.'— BlutterBly?
- In the song "We're going to Ibiza", my friend thought they said "we're going to eat pizza"!— Smaranda
- My cousin used to think that a group of nine singers was called a "niner".Anon
- I used to think there was a crayon called "window color." Turns out there isn't. — Not the brightest crayon in the box