The short answer is: Yes the Bible is true. It is the word of God and the only source we have for understanding His will and purpose for the world and for us as individuals.
The greatest historical evidence for the Bible being the word of God is undoubtedly the resurrection of the Lord Jesus Christ. See:
Fulfilled Bible prophecy also demonstrates that the Bible is the word of God.
Please read (please click the titles):
I hope you have found this helpful.