Though the doors were shut at the dwelling where the disciples were gathered for fear of the Jews on the evening of the Sunday after the Passover, our Saviour wondrously entered and stood in their midst, and greeted them with His customary words, "Peace be unto you." Then He showed unto them His hands and feet and side; furthermore, in their presence, He took some fish and a honeycomb and ate before them, and thus assured them of His bodily Resurrection. But Thomas, who was not then present with the others, did not believe their testimony concerning Christ's Resurrection, but said in a decisive manner, "Except I shall see in His hands the print of the nails, and put my finger into the print of the nails, and thrust my hand into His side, I will not believe." Wherefore after eight days, that is, on this day, when the disciples were again gathered together and Thomas was with them, the Lord Jesus came while the doors were shut, as He did formerly. Standing in their midst, He said, "Peace be unto you"; then He said to Thomas, "Bring hither thy finger, and behold my hands; and bring hither thy hand, and thrust it into My side: and be not unbelieving, but believing."

And Thomas, beholding and examining carefully the hands and side of the Master, cried out with faith, "My Lord and my God." Thus he clearly proclaimed the two natures - human and divine - of the God-man (Luke 24:36-49; John 20:19-29).

This day is called Antipascha (meaning "in the stead of Pascha," not "in opposition to Pascha") because with this day, the first Sunday after Pascha, the Church consecrates every Sunday of the year to the commemoration of Pascha, that is, the Resurrection.

George, this truly great and glorious Martyr of Christ, was born of a father from Cappadocia and a mother from Palestine. Being a military tribune, or chiliarch (that is, a commander of a thousand troops), he was illustrious in battle and highly honoured for his courage. When he learned that the Emperor Diocletian was preparing a persecution of the Christians, Saint George presented himself publicly before the Emperor and denounced him. When threats and promises could not move him from his steadfast confession, he was put to unheard-of tortures, which he endured with great bravery, overcoming them by his faith and love towards Christ. By the wondrous signs that took place in his contest, he guided many to the knowledge of the truth, including Queen Alexandra, wife of Diocletian, and was finally beheaded in 296 in Nicomedia.

His sacred remains were taken by his servant from Nicomedia to Palestine, to a town called Lydda, the homeland of his mother, and then were finally transferred to the church which was raised up in his name. (The translation of the Saint's holy relics to the church in Lydda is commemorated on November 3; Saint Alexandra the Queen, on April 21.)

If April 23 falls on or before Great and Holy Pascha, the Feast of St. George is translated to Bright Monday.

Saint Elizabeth was born in Heraclea of Thrace. She lived in virginity and exhausted herself with ascetical labours and every kind of hardship from the time of her youth, and was deemed worthy of the grace of wonderworking from God; she reposed in peace in Constantinople in the middle of the fifth century.

Mark was an idolater from Cyrene of Pentapolis, which is near Libya. Having come to the Faith of Christ through the Apostle Peter, he followed him to Rome. While there, at the prompting of Peter himself and at the request of the Christians living there, he wrote his Gospel in Greek, and it is second in order after Matthew's. Afterwards, travelling to Egypt, he preached the Gospel there and was the first to establish the Church in Alexandria. The idolaters, unable to bear his preaching, seized him, bound him with ropes, and dragged him through the streets until he, cut to pieces on rocks, gave up his soul. It is said that he completed his life in martyrdom about the year 68. He is depicted in holy icons with a lion next to him, one of the living creatures mentioned by Ezekiel (1:10), and a symbol of Christ's royal office, as Saint Irenaeus of Lyons writes.

If April 25 falls on or before Great and Holy Pascha, the Feast of St. Mark is translated to Bright Tuesday.

This Saint was Bishop of Amasia in Pontus, in the days of Licinius (reigned 308-324), fellow Emperor and brother-in-law of Saint Constantine the Great. Licinius' wife Constantia, sister of Saint Constantine, had as handmaid a virgin named Glaphyra. When it became known that Licinius had conceived a sinful desire for her. Constantia secretly sent Glaphyra away to the East. Coming to Amasia, she took refuge with Saint Basileus. When Licinius learned of this, he furiously commanded that both be brought before him. When the soldiers came for them, however, Saint Glaphyra had already departed to the Lord; she is also commemorated this day. Saint Basileus was taken alone to Nicomedia, where he was beheaded. His body was cast into the sea, but through divine revelation was found again and brought back to Amasia.

Symeon was a first cousin of our Lord Jesus Christ. He was the son of Clopas (or Cleopas, also called Alphaeus), the brother of Joseph the Betrothed. He became the second Bishop of Jerusalem, as a successor to James the Brother of God. He ended his life when he was crucified during the reign of Trajan, in 107, at the age of 120.

These holy Martyrs, who were from various regions, suffered martyrdom together when they were beheaded in Cyzicus, a city in Asia Minor on the southern coast of the Sea of Marmara.

Both of these Saints were disciples of the Apostle Paul, who mentions them in his Epistle to the Romans, saying: "Jason and Sosipater my kinsmen greet you" (16:21). Jason was from Tarsus of Cilicia, and became bishop there. Sosipater was from Patras of Achaia, and became Bishop of Iconium. When they had shepherded their churches well for a long time, they departed west that they might profit others also, and arrived finally at the island of Corfu, where they were the first to preach the Gospel to its people. They suffered many things for Christ's Name, drew many souls to salvation, and finished the course of their life there. In the ancient city of Corfu, a church from the first centuries, built in their honour and bearing inscriptions that mention the Saints by name, verifies the historical account concerning them.