The Icon in the Orthodox Christian Church
History of Icons
Icons in the Orthodox Church are part of the Holy Tradition which includes: Scriptures, Fathers Interpretation of Scriptures, the Creed, Service Books, Ecumenical Councils, Canons and Holy Icons. The entire Church collectively at the seventh Ecumenical Council at Nicea in 787 AD restored and approved the Icons. This triumph of the Icons is celebrated on the first Sunday of great Lent and its called "Orthodoxy Sunday".
Saint Luke, the Holy Apostle and Evangelist, celebrated on October 18th, is regarded as the founder of Christian iconography: "He painted three icons of the most holy Mother of God and also icons of the Apostles Peter and Paul, and is regarded as the founder of Christian iconography." ("the Pologue for the Ochrid" lives of the saints by Bishop Nikolai Velimirovic Pg. 80).
"...but he was later to display a considerable talent as an artist whose icon of the Virgin Mary he gave to the Mother of God herself and which is now the prized possession of the Patriarchate of Constantinople." (the "Orthodox Saints" by George Poulos (Holy Cross) Pg. 43).
Therefore the same hands that wrote the Gospel of Luke and the Book of Acts wrote the Icon of the Mother of God.