The True Cross. Yes - that one. The True Cross is exactly what it sounds like - the cross upon which Christ was crucified. According to our (Eastern Orthodox) tradition, it was crafted from cedar, pine, and cypress to fulfill Isaiah 60:13, and was rediscovered by St. Helena (the mother of St. Constantine) on her journey to Jerusalem in 326AD. It was there with two other crosses (those of St. Dismas, the repentant thief, and of Gestas, the impenitent thief), and to tell which was the True Cross a woman close to death was brought and touched all three but only recovered when she touched that which had held Christ.
On this site was erected the Church of the Holy Sepulchre (tomb), which today contains portions of the True Cross preserved as relics. These were stolen by Latin crusaders and utilized in their “Kingdom of Jerusalem,” stolen by the Muslims, and only much later recovered. Today several relics of the True Cross are found throughout the world; while we don’t have one at St. Andrew’s, we believe that the power of the Cross is in all images thereof, including the blessing cross we venerate this Sunday on the analogion, and at the end of every Divine Liturgy.