Monastic Life in Jerusalem
Luke came from a Georgian family of the name Mukhaisdze. The sources relate that his father had died and that his mother had taken up monastic life at a monastery in Jerusalem; it was to visit her and to venerate the holy places that the twenty-year-old Luke first journeyed to the city.
Drawn to the religious life there, he remained and was tonsured a monk at the Holy Cross Monastery, the historic Georgian foundation in Jerusalem. He was later ordained a deacon and acquired fluency in Arabic, the language of the region's rulers. The brotherhood, recognizing his wisdom, asked him to lead them as abbot, and according to the sources he governed the monastery in an exemplary manner for three years.