Jama'at-e Rabbani is the Iranian branch of the Assemblies of God, one of the largest evangelical Pentecostal Christian churches. It has its centre in Tehran, Iran.
Many (about 80%) of its adherents are converts from Islam, the remainder come from Iranian Christian ethnic minorities. The services are conducted in Persian and Armenian.
Read more about Jama'at-e Rabbani: Official Iranian Perceptions, Religious Background, Controversy, Address in Tehran, Bishops of Jama'at-e Rabbani