John Moschus was a Byzantine monk and spiritual writer of Georgian origin who lived from approximately 550 to 619. Known as the Abstemious, he spent much of his life in the monastic regions near Jerusalem and Bethlehem. His travels took him through Egypt and Sinai, including time spent at the Lavra of Aeliotes. He is primarily remembered for his significant contributions to hagiography and ascetic literature, documenting the lives of holy individuals within the Eastern Orthodox tradition.