So, if you ask God if the Bible is true and He says yes, then it is true. But if He says no, then it wasn't him. So why bother asking if you will only accept one answer? And how does that allow God the chance to correct possible misinterpretations of those that taught their understanding of the Bible to you?
Bottom line is you believe because someone else told you to, and you are not allowed to disbelieve them. You are either lazy or afraid. Either way you have no faith of your own.
The bible is true because it has proven to be true through the tests of prophecy, preserved manuscripts, archeological evidence, the life and death and resurrection of Jesus Christ, who also said the bible was the Word of God. If a Spirit told me the bible wasn't true, that spirit is obviously a liar and it is not the Holy Spirit. God's spirit NEVER disagrees with the Word of God. N-E-V-E-R.
I will say again: Any claim or teaching that does not jive with the bible IS A LIE.