A barber would find no work in a purely Jewish city, for not only do the Jews wear beards, but they also never shave their heads as their Eastern neighbours do.

The only ones amongst the Jews who were allowed to have shaven heads were the poor outcast lepers.

Hence the shaven head was to them a sign or symbol of uncleanness and of excommunication.

They looked upon a man with a bald head very much as we look upon one whose hair is cropped very suspiciously close, and whom we therefore imagine must have been in gaol.
Thus it came to pass that 'Bald-head' became a common term of reproach and insult.

Elisha, the holy prophet, goes up the hill, wearing a thick turban to protect his head from the sun.