Catholic Encyclopedia: Jonathan
Commentary on the son of Saul from the traditional Catholic perspective.
David and Jonathan
Discussion of the controversial suggestion that the two men may have been lovers.
Jewish Encyclopedia: Jonathan
Overview of the son of Saul from the traditional Jewish perspective, including Talmudic commentary.
Jonathan
Biblical biography of the steadfast friend of King David.
The Affection And Care Of Jonathan And The Contriv
Chapter on the devotion of David's friend and wife by the first-century Jewish historian Josephus.