Most of the Petrine House of Imran have lapsed in Torah observance and maintaining Kohen and Israelite marriage laws. This has led to several different sects among them. However, the remaining Petrines who follow only the Torah faithful House of Imran and maintain faith in the Petrine Lectionary are united in spirit and [[tosafist]] approach even if individually isolated.
Based in Jerusalem until 135AD, the Petrine Kohens then relocated to Urfa (Edessa) where they remained until 345AD. It is thought that the Kna Jews of Kerala may descended from a sect which moved to Sheba and Havilah in 345AD.