The naming of the Armenian Church as Loysvorchgan, which translates to "From the Illuminator" who is Saint Gregory the Illuminator is given to the Armenian Church by the Roman Catholic Church. One of the major reasons is that the Roman Catholic Church believes that Saint Gregory was appointed and ordained by the Roman Catholic Church. On the contrary Armenia had priests and bishops prior to Saint Gregory the Illuminator as mentioned by the historian Eusubious. Several apostles, including Saint Andrew (stated by Saint Epiphanius, Bishop of Cyprus) Saint Simon (also known as Canaanite, or Cananean, or Zealot) and Saint John the Evangelist, helped preach Christianity and cultivated it Armenia. According to Armenian tradition, among the twelve the apostles Thaddeus and Bartholomew have been attributed to bringing Gospel of Jesus to Armenia, therefore are called the "First Illuminators," by the Armenians.