My racist father used to sing just the chorus to me:-

Old folks, young folks, everybody come.
Join the darkies' Sunday School and make yourselves at home.
Bring your sticks of chewing gum and sit upon the floor,
And I'll tell you Bible stories that you've never heard before.

Two points: One obviously didn't 'check in' the chewing gum but chewed it in situ so to speak.

And although the 'darkies' bit is racist and offensive, I personally feel that more offensive still is the implication that the 'darkies' distorted the Bible stories and made fun of them. The inference was that their church was ridiculous and unworthy of respect.

In those days (very early fifties) there was a general feeling round our way that 'darkies' were inferior, rather amusing and objects of fun.
Not a nice view...