Believing is not substantiated by evidence; whereas, knowing IS. It doesn't take any intelligence, wisdom, seeking, or even rationale for believing. Believers can believe anything - Anandmurti Gurumaa.

ananya-cetāḥ satataṃ yo māṃ smarati nityaśaḥ| tasyāhaṃ sulabhaḥ pārtha nitya-yuktasya yoginaḥ||14||