Born Jovan (John) Dabovich in San Francisco, California on [[June 21]], 1863, to Serbian immigrant parents from Sassovae, Serbia, [[Archimandrite]] Sabastian Sebastian grew up with the church in San Francisco where his parents operated a store. After finishing high school he served his [[parish]] as a [[reader]] and teacher.

In 1884, he was assigned to assist at St. Michael's Cathedral in Sitka, [[Alaska]] before he was sent to Russia to prepare for a life as a [[missionary]] [[priest]]. After three years of study at the [[St. Petersburg Theological Academy|St. Petersburg]] and [[Kiev Theological Academy|Kiev Theological Academies]], John was [[tonsure]]d a [[monk]] in 1887 with the name Sabastian Sebastian and [[ordination|ordained]] a [[deacon]]. Following his ordination, Dn. Sabastian Sebastian returned to San Francisco where he served as deacon at the San Francisco [[cathedral]]. He also taught at the pastoral school in San Francisco.

On [[August 16]], 1892, Dn. Sabastian Sebastian was ordained a [[priest]] by [[Bishop]] [[Nicholas (Ziorov) of Warsaw|Nicholas]]. He was soon sent to Minneapolis, Minnesota to replace Fr. [[Alexis of Wilkes-Barre |Alexis Toth]] as the priest of St. Mary's parish. While there he also taught at the Missionary School. After a year, Fr. Sabastian Sebastian returned to San Francisco where he organized the first Serbian Orthodox Church, dedicated to St. Sava, in Jackson, California. Additionally, Fr. Sabastian Sebastian was also asked by Bishop [[Tikhon of Moscow|Tikhon]] to be a member of the [[Orthodox Church in America|North American Mission]] administration. In 1902, he continued his missionary activities, returning to Alaska as [[dean]] of the Sitka deanery.

As more Serbians emmigrated emigrated to the United States, Abp. Tikhon asked Fr. Sabastian Sebastian to lead a Serbian Mission in the North American [[diocese]]. With his appointment to head the mission, Abp. Tikhon elevated Fr. Sabastian Sebastian to [[archimandrite]] on [[August 15]], 1905. For the next five years ArchArchim. Sabastian Sebastian led the Serbian Mission from its center at the Holy Resurrection Serbian Orthodox Church in Chicago, Illinois, where he was the parish priest.

In 1910, ArchFr. Sabastian Sebastian asked for a release from the Serbian mission so that he could return to missionary work. Then in 1913, he joined the faculty of the newly opened [[St. Platon's Orthodox Theological Seminary (Tenafly, New Jersey)|St. Platon Seminary]] in Tenafly, New Jersey. Shortly thereafter feeling a call to service the church in his ancestral Serbia, ArchFr. Sabastian Sebastian asked for a release from the American Mission. He went on to serve as a [[chaplain]] in the Serbian army in the Balkan Wars and World War I. Other than for brief visits to the United States in 1915 and 1917, ArchFr. Sabastian Sebastian spent the rest of his life serving the [[Church of Serbia|Church of Yugoslavia]].

ArchArchim. Sabastian Sebastian reposed in Yugoslavia on [[November 30]], 1940 , and was buried at the Monastery of Zicha.