There is a an Easter him called 'Thine be the Conqueror' which contains the line 'risen conquering son'. I used to think that line was 'risen concrete son' so for a number of years I thought Jesus was made of concrete and that's why he could rise again after being crucified.
A childhood belief about hymns

others believed things like this
- I used to call croutons "concretes" because they were so crunchy, I thought they were made of concrete.— Scary Dream
- I used to believe that, in cities, if you dug deep enough in anyone's lawn, eventually you'd hit the concrete.— Kevin Fox
- I used to believe my father when he told me that if I sat on cold concrete I would get hemorrhoids.Anon
- I used to believe the Christ was born
on Christmas Day and crucified the
following Easter.— William Golding - I used to believe that a "punch line" meant a line of people waiting to dip punch from a punch bowl.— Sheila
- I used to blieve that the orange center of marshammow easter eggs was Jesus...— Hayley