▁sometimes ▁refers ▁to ▁itself ▁as ▁The ▁Pro tes ' t ant ▁Conference ▁of ▁the ▁Wisconsin ▁Syn od . ▁The ▁name ▁" Pro tes ' t ant " ▁was ▁adopted ▁in ▁ 1 9 2 9 , ▁on ▁the ▁ 4 0 0 ▁year ▁anni versary ▁of ▁the ▁Second ▁Diet ▁of ▁Spe yer . ▁( The ▁Second ▁Diet ▁of ▁Spe yer ▁resulted ▁in ▁the ▁ad option ▁of ▁the ▁name ▁" Pro test ant " ▁against ▁this ▁Holy ▁Roman ▁Imperial ▁decision ▁to ▁out law ▁the ▁Luther ans .) ▁The ▁name ▁" Pro tes ' t ant " ▁was ▁chosen ▁to ▁sign ify ▁their ▁protest ▁against ▁" syn od ical ism " ▁on ▁the ▁part ▁of ▁both ▁the ▁Wisconsin ▁and ▁Missouri ▁Syn ods . ▁While ▁the ▁Missouri ▁Syn od ▁did ▁not ▁exp el ▁the ▁Pro tes ' t ants , ▁it ▁syn od ically ▁rat ified ▁the ▁exp uls ions ▁in ▁ 1 9 2 7 . ▁ ▁Core ▁belief s ▁The ▁Pro tes ' t ant ▁Conference ▁teach es ▁that ▁the ▁Bible ▁is ▁the ▁only ▁author itative ▁and ▁error - free ▁source ▁for ▁doctrine . ▁It ▁subscri bes ▁to ▁the ▁Luther an ▁Conf essions ▁( the ▁Book ▁of ▁Con cord ) ▁not ▁in - so - far - as ▁but ▁because ▁it ▁is ▁an ▁accurate ▁presentation ▁of ▁what ▁Script ure ▁teach es . ▁It ▁teach es ▁that ▁Jesus ▁is ▁the ▁center ▁of ▁Script ure ▁and ▁the ▁only ▁way ▁to ▁et ernal ▁salv ation , ▁and ▁that ▁the ▁Holy ▁Spirit ▁uses ▁the ▁g ospel ▁alone ▁in