Following his graduation he went to Alexandria, Egypt, where he was ordained a [[priest]] and served the Church of Saint Nicholas in Cairo with great distinction. In recognition of his piety and brilliance as a preacher, as well as his administrative ability, he was consecrated Bishop/Metropolitan of Pentapolis (an ancient [[diocese]] in Cyrenaica, in what is now Libya) by the Greek Orthodox Patriarch Sophronios in 1889.
[[Image:Nektarios.jpg|thumb|right|St. Nektarios of Aegina as Metropolitan of Pentapolis.]]
He served as a bishop in Cairo for one year, but was then unjustly removed from his post. This was a result of lies made up by jealous clerics who envied his popularity with the people. Patriarch Sophronios refused to listen to St. Nectarios, who was sent away from Egypt without trial or explanation and was never given an opportunity to defend himself.
After his dismissal, he returned to Greece in 1891 and spent several years as a preacher (1891-1894). He was then appointed director of the Rizarios Ecclesiastical School for the education of priests in Athens, where his service was exemplary for fifteen years. He developed many courses of study and wrote numerous books, all while preaching widely throughout Athens.
While at the monastery, he also tended the gardens, carried stones, and helped with the construction of the monastery buildings that were built with his own funds. He was also the Metropolitan of the island of Aegina.
St. Nectarios died on the evening of [[November 8]], 1920, at the age of 74, following hospitalization for prostate cancer. The commemoration date was set at the next day, [[November 9]], because [[November 8]] is the feast of Synaxis of Archangel Michael. The first posthumous miracle took place when the shirt of St. Nectarios was accidentally placed on the neighboring bed: a paralyzed man who was lying there was suddenly healed. The body of St. Nectarios was taken to the Holy Trinity Convent, where he was buried by
a Priest- Monk named [[Sava the New|Savas]], who later painted the first [[icon]] of St. Nectarios. The funeral of St. Nectarios was attended by multitudes of people from all parts of Greece and Egypt.
[[image:Nektariosicon.jpg|thumb|right|An icon of St. Nectarios of Aegina]]Many people regarded St. Nectarios as a saint during his lifetime because of his prayerful life, his [[humility]], his purity and other virtues, and his writings, as well as the miracles he performed. St. Nectarios also had the gift of prescience.