The Talmud, at the end of the third chapter of tractate Yoma, relates that there were families associated with the Temple ritual that refused to share with others their secrets in providing necessary services.
The family of Beit Gormo did not teach others how to bake the showbread that was displayed on the table in the sanctuary. The members of the Beit Avtinas clan kept to themselves the recipe for preparing the incense. Hagros ben Levi produced beautiful melodic sounds by tapping his mouth with his fingers, but did not tell others how he was able to produce those sounds. Finally, Ben Kamtzar did not reveal how he was able to hold four quills in his hand and write the Tetragrammaton, the name of God, simultaneously. [Read more…]