2 Timothy 3:16
All scripture(the word) is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
What is righteousness?
1 John 5:7
For there are three that bear witness in heaven: the Father, the Word, and the Holy Spirit; and these three are one.
And the Word became flesh and dwelt among us, and we beheld His glory, the glory as of the only begotten of the Father, full of grace and truth. John 1:14
Who or what is the Word?
Numbers 23:19
God is not a man, that He should lie, Nor a son of man, that He should repent. Has He said, and will He not do? Or has He spoken, and will He not make it good?
Titus 1:2
in hope of eternal life which God, who cannot lie, promised before time began,
Hebrews 6:18
that by two immutable things, in which it is impossible for God to lie, we might have strong consolation who have fled for refuge to lay hold of the hope set before us.
Can God Lie?
1 John 2:21
I have not written to you because you do not know the truth, but because you know it, and that no lie is of the truth.
What is Truth?
Your question could best be answered like this: If God CANNOT lie -and God is Truth, and the Truth is his Word, why don't you believe the Bible (the Word) as a real, literal, historical document?