A lovely poem from The Writer's Almanac:
Teaching a Child the Art of Confession
It is best not to begin with Adam and Eve. Original Sin is
baffling, even for the most sophisticated minds. Besides,
children are frightened of naked people and apples. Instead,
start with the talking snake. Children like to hear what animals
have to say. Let him hiss for a while and tell his own tale.
They'll figure him out in the end. Describe sin simply as those
acts which cause suffering and leave it at that. Steer clear of
musty confessionals. Children associate them with outhouses.
Leave Hell out of the discussion. They'll be able to describe it
on their own soon enough. If they feel the need to apologize
for some transgression, tell them that one of the offices of the
moon is to forgive. As for the priest, let him slumber a while
by David Shumate, from High Water Mark: Prose Poems © University of Pittsburgh Press.