The Bible is, indeed, evidence for the existence of that which you deny to be real, as you can see in the definitions in the links below. If it isn't a sufficient amount to compel you to believe what it asserts, then that is an altogether different argument.
http://learnersdictionary.com/definition/evidence
https://www.dictionary.com/browse/evidence
https://en.oxforddictionaries.com/definition/evidenceEdited by SideshowBob at 12:43:57 on 12/25/18