World accommodating definition
In the sociology of religion, the most widely used classification is the church-sect typology.
The typology states that churches, ecclesia, denominations and sects form a continuum with decreasing influence on society.
Saudi Arabia, however, lacks Johnstone's criteria for an ordained clergy and a strictly hierarchical structure, although it has the ulema.
Ecclesias include the above characteristics of churches with the exception that they are generally less successful at garnering absolute adherence among all of the members of the society and are not the sole religious body.
The state churches of some European nations would fit this type.
Leaders of sectarian movements (i.e., the formation of a new sect) tend to come from a lower socio-economic class than the members of the parent denomination, a component of sect development that is not yet entirely understood.
Most scholars believe that when sect formation involves social class distinctions, they reflect an attempt to compensate for deficiencies in lower social status.