To resolve doctrinal differences among the competing factions, sometime around the year 50 the apostles convened the first Church council, the Council of Jerusalem. This council affirmed that Gentiles could become Christians without adopting all of the Mosaic Law.[29] Growing tensions soon led to a starker separation that was virtually complete by the time Christians refused to join in the Bar Kokhba Jewish revolt of 132,[30] however some groups of Christians retained elements of Jewish practice.[31]