What you are most likely to get are very subjective answers. The root word of "revelation" is "reveal". Now whether the scriptures "reveal" anything about a deity is subject to a variety of opinion. However...

My answer: I don't they objectively determine if there are any deities or not, but it may reveal some concepts of how we may live our life that could be very useful.

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"The further the spiritual evolution of mankind advances, the more certain it seems to me that the path to genuine religiosity does not lie through the fear of life, and the fear of death, and blind faith, but through striving after rational knowledge."-- Einstein