god 's law divine grace concept perseverance saints predestination today lutheranism one largest branches protestantism approximately nbsp million adherents constitutes third common protestant confession historically pentecostal denominations anglicanism ref name pewforum lutheran world federation largest global communion lutheran churches represents nbsp million people figures miscount lutherans worldwide many members generically protestant lwf member church bodies self identify lutheran attend congregations self identify lutheran additionally international organizations global confessional missional
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