The Egyptian Bookof the Dead
http://www.blackmask.com/olbooks/bookdeaddex.htm

Barlaamand Ioasaph
St.John Damascene
Itisnot known whereorwhenthis storywas written,butitis believed to have been translated into Greek (possibly from a Georgian original) sometime in the 11th Century A.D. Although the ultimate author is usually referred to as "John the Monk", it has been traditionally
ascribed to St. John of Damascus.
http://www.blackmask.com/olbooks/barlaamdex.htm