"Search the scriptures — search the revelations which we publish and ask your Heavenly Father, in the name of His Son Jesus Christ, to manifest the truth unto you, and if you do it with an eye single to His glory nothing doubting, He will answer you by the power of His Holy Spirit. You will then know for yourselves and not for another." — Joseph Smith, Prophet
Else what shall they do which are baptized for the dead, if the dead rise not at all? why are they then baptized for the dead?