Venerable Mark was born in Athens. After the death of his parents, he withdrew to Egypt, where he lived for ninety-five years in a cave, praying in complete solitude. He endured both cold and heat, ate rarely, and struggled against the unclean spirits that were fighting against him. After thirty years of severe trials, he was granted the Divine Grace, while angels of the Lord appeared before him, bringing him food.
During a conversation with Abba Serapion, the saint performed a miracle by moving an entire mountain, thus revealing the sanctity of his personality. Moreover, seeing the hypocrisy and lack of faith among people, his eyes were often filled with tears of repentance and supplication.
Before the end of his life, he asked Abba Serapion to bury him in the cave where he had spent his entire ascetic life, sealing the entrance. His soul was taken up into the heavens, while Abba Serapion became a witness to this miracle.
Later, the latter was led by two angels to the great elder John, in order to recount all that he had experienced with Venerable Mark and speak of his wondrous end.
