The subject of Our Lady of the Burning Bush is based on the Old Testament prophecy of the incarnation of Christ. Such theologians as St Gregory of Nyssa and Theodoret of Cyrrhus regarded Moses’s vision of the burning bush as a symbol and prototype of the Virgin Mary and the Immaculate Conception.
The iconography of the scene was inspired by the Russian Orthodox hymns comparing the Virgin to the burning bush seen by Moses — engulfed in flames, yet not burning (Exodus 2:1–6). Icons of the subject were popular from the sixteenth century onwards and were believed to offer protection from fire. The Russian Orthodox Church celebrates the festival of the icon on 4/17 September, which is also the day of Moses. More on Our Lady of the Burning Bush