(n.) The character and behavior of a zealot; excess of zeal; fanatical devotion to a cause.

bibliolatry bigotry charismatic gift charismatic movement charismatic renewal excessiveness extravagance extremeness extremism fanaticalness fanaticism fervor frenzy fury gift of tongues glossolalia hysteria infatuation mania monomania obsession obsessiveness overambitiousness overanxiety overanxiousness overdevoutness overeagerness overenthusiasm overpiousness overreaction overreligiousness overrighteousness overzealousness pentecostalism perfervidness rabidness radicalism revival revivalism sanctimony single-mindedness terrorism ultrazealousness zeal zealotism zealousness