The Bible is inspired by God

When we say the Bible is inspired by God, we mean that it comes from God and He decided what should be in it. Even though human beings did the actual writing, God led them to write what He wanted separate from their own understanding and initiative (2 Peter 2:20--21).

In Jeremiah, we hear God telling the author to write down the prophecies He had given him so that readers may repent upon reading it.

During the fourth year that Jehoiakim son of Josiah was king in Judah, the Lord gave this message to Jeremiah: "Get a scroll, and write down all my messages against Israel. Judah, and the other nations. Begin with the first message back in the days of Josiah, and write down every message, right up to the present time. Perhaps the people of Judah will repent when they hear again all the terrible things I have planned for them. Then I will be able to forgive their sins and wrongdoings."

Jeremiah 36:1--3

God also told John the apostle many times in the book of Revelation to write down the things he was seeing and hearing. (Revelation 1:11, 1:19, 2:1, 2:8, 2:12, 2:18, etc.)

Because the Bible contains exactly what God wants it to contain, it has the last word in all matters of life and faith. Further, it is sufficient as the only resource to be used in such matters: "God uses it to prepare and equip his people to do every good work." (2 Timothy 3:17)