How long did it take to write the Bible?
Here's the answer:
It took a long time to write the Bible!
The Bible was written over about 1,500 years from 1400 BC to AD 90. God wanted different people to write at different points in history so we could see His plan for the world.
Second Timothy 3:16 says that God "breathed life" into the Bible. What does that mean? It means the authors wrote down what God wanted them to write. Sometimes this is called "inspiration," and it means that the authors were guided by God to write their books of the Bible. Since God is the real author, we can know that the Bible has no mistakes even though it was written over such a long period of time.
The authors of the Bible were very different. For example, John was a fisherman and Luke was a doctor. Paul made tents and Ezra was a priest. Even though the men were so different and the Bible took so long to write, the Bible presents the same story—it’s all about God’s plan to save the world through His Son, Jesus.
"Above all, here is what you must understand. No prophecy in Scripture ever came from a prophet’s own understanding. It never came simply because a prophet wanted it to. Instead, the Holy Spirit guided the prophets as they spoke. So prophecy comes from God" (2 Peter 1:21).
"God has breathed life into all of Scripture. It is useful for teaching us what is true. It is useful for correcting our mistakes. It is useful for making our lives whole again. It is useful for training us to do what is right" (2 Timothy 3:16).