How does the Bible remain unchanged despite being written by many authors?

The Bible, comprised of 66 books written by approximately 40 authors over 1,500 years, exhibits a remarkable internal consistency and unity of message that transcends time and individual authorship. This coherence points to divine inspiration, as 2 Timothy 3:16 affirms that 'all Scripture is given by inspiration of God.' Each book addresses various aspects of God's redemptive plan without contradiction, aligning to tell a singular story of humanity’s fall and God’s grace through Jesus Christ. This divine authorship ensures that despite human involvement, the message remains unchanged and relevant throughout history, compelling believers and scholars alike to explore its depth.