~By Metropolitan Agathangelos of Fanari Blessed David was from Northern Mesopotamia, which was a large monastic centre, being born in about 450 A. D. For reasons we don’t know, he came to Thessaloniki together with a monk called Adola. According to their biography, he initially entered the monastery of the Martyr Saints Theodora and Mercurius, which was known as the “Koukouliates”, the location of which was defined as being “in