After consulting the Bible, the Priest says, 'My son, after an exhaustive search, I am positive that sex is work and is therefore not permitted on Sundays.'
The man thinks: 'What does a priest know about sex?' So he goes to a Minister, who after all is a married man and experienced in this matter. He queries the Minister and receives the same reply. Sex is work and therefore not for the Sabbath!
In other words, he goes to a Rabbi. The Rabbi ponders the question, then states, 'My son, sex is definitely play..'
The Rabbi softly speaks, 'If sex were work, my wife would have the maid do it.'