Synaxis of the Holy Powder (or manna) which emitted from the tomb of Saint John the Theologian , Arsenios the Great
ACTS OF THE APOSTLES 3:11-16
In those days, while the healed lame man clung to Peter and John, all the people ran together to them in the portico called Solomon's, astounded. And when Peter saw it he addressed the people, "Men of Israel, why do you wonder at this, or why do you stare at us, as though by our own power or piety we had made him walk? The God of Abraham and of Isaac and of Jacob, the God of our fathers, glorified his servant Jesus, whom you delivered up and denied in the presence of Pilate, when he had decided to release him. But you denied the Holy and Righteous One, and asked for a murderer to be granted to you, and killed the Author of life, whom God raised from the dead. To this we are witnesses. And his name, by faith in his name, has made this man strong whom you see and know; and the faith which is through him has given the man this perfect health in the presence of you all."
JOHN 19:25-28, 21:24-25
At that time, standing by the cross of Jesus were his mother, and his mother's sister, Mary the wife of Clopas, and Mary Magdalene. When Jesus saw his mother, and the disciple whom he loved standing near, he said to his mother, "Woman, behold, your son!" Then he said to the disciple, "Behold, your mother!" And from that hour the disciple took her to his own home. This is the disciple who is bearing witness to these things, and who has written these things; and we know that his testimony is true. But there are also many other things which Jesus did; were every one of them to be written, I suppose that the world itself could not contain the books that would be written.
We have the power of the Holy Cross, our holy symbol, the divine grace of Christ, only as long as we have the holy marking of the Holy Baptism, meaning we have denied the devil and sided with Christ, and received the Holy Marking, the seal of the Gift of the Holy Spirit. - Elder Paisios of the Holy Mountain