Rabbi Samuel bar Nahmani said in the name of Rabbi Johanan that skin disease results from seven things: slander, the shedding of blood, vain oath, incest, arrogance, robbery, and envy. The Gemara cited scriptural bases for each of the associations: For slander, for bloodshed, 2 Samuel for a vain oath, for incest, for arrogance, 2 Chronicles for robbery, (as a Tanna taught that those who collect money that does not belong to them will see a priest come and scatter their money around the street); and for envy,