A new pastor was visiting in the homes of his parishioners. At one
house it seemed obvious that someone was at home, but no answer came to
his repeated knocks at the door.
Therefore, he took out a business card and wrote 'Revelation 3:20' on
the back of it and stuck it in the door.
When the offering was processed the following Sunday, he found that his
card had been returned. Added to it was this cryptic message, 'Genesis
3:10.'
Reaching for his Bible to check out the citation, he broke up in gales
of laughter. Revelation 3:20 begins 'Behold, I stand at the door and
knock.' Genesis 3:10 reads, 'I heard your voice in the garden and I was
afraid for I was naked.'