Historical Background
According to the surviving tradition, Arsenius moved from the monastery of Khandzta to Palestine, where he labored alongside a monk named Macarius of Leteti. He afterward established a Georgian monastery on Mount Olympus in Asia Minor. Both Michael and Arsenius are reported to have been contemporaries of Patriarch Sergius of Jerusalem, whose tenure is dated to 843-859, which places their activity in the middle of the ninth century.
Several figures are linked to them in the tradition. Saint Grigol (Gregory) of Khandzta is named as a possible teacher of Arsenius, and Saint Ephraim, bishop of Atsquri, is described as a relative. The Venerable Ilarion the Georgian is said to have arrived at Mount Olympus about twenty years after them and to have found three Georgian monks there, likely the disciples of Michael and Arsenius.