 Thus Adam represents Christ and Eve represents the Church.Anastasius' extensive exegesis of the beginning of Genesis draws upon commentaries written by many Fathers of the Church, including Clement of Alexandria, Origen, Gregory of Nyssa, Gregory of Nazianzus, and Pseudo-Dionysius the Areopagite.One reason for some doubts about Anastasius’ authorship is the lack of any surviving manuscript copied before the end of the fifteenth century.