Religion can be “dead works”?

Is Jesus saying ministry in your own hometown will be ineffective? What are the “dead works” in Hebrews 9:14? My family grew up reciting the Nicene Creed. Does that mean they’re all saved now? What is the blasphemy of the Holy Spirit? Why can’t it be forgiven like all other sins?

Tags: blasphemy, dead works, effectiveness, forgiveness, Hebrews 9:14, Holy Spirit, hometown, memorize, ministry, Nicene Creed, recite, salvation