The case of King Saul: did he have recurrent unipolar depression or bipolar affective disorder?

Abstract

It is widely accepted that Saul, the first king of Israel, had a mental disorder. Probably it was depression, soothed when David played on his harp: ‘ And whenever the evil spirit from God came upon Saul, David took the lyre and played it in his hand, and Saul would be relieved and feel better and