Yes. I believe the Bible is inspired, infallible and inerrant. Inspired means God breathed it out. Infallible means it's trustworthy. Inerrant means it's without error. "All Scripture is breathed out by God" (2 Timothy 3:16 ESV).
You might be thinking, "Didn't a bunch of people just vote on which books made it in?" Not quite. The church didn't decide what was Scripture. It recognized what God had already inspired.
The Old Testament was being written down from the beginning. God wrote the Ten Commandments Himself (Exodus 31:18), and Moses and Joshua wrote down what God said (Exodus 17:14; Joshua 24:26). Jesus had the same Old Testament we have, and He never argued with anyone about what belonged in it. He and the New Testament writers quote it as God's authority over and over, and they never quote anything outside it that way.
The New Testament came through the apostles. Jesus promised them, "The Helper, the Holy Spirit... will teach you all things and bring to your remembrance all that I have said to you" (John 14:26 ESV). The writers knew they were writing Scripture. Peter put Paul's letters right alongside "the other Scriptures" (2 Peter 3:15–16 ESV). The early church asked four questions about each book:
Was it written by an apostle or someone close to one?
Was it accepted by the church at large?
Did it agree with the rest of Scripture?
Did it show the fruit of the Holy Spirit?
Here's something most people don't know: in church history, there's never been a serious debate about adding books to the New Testament we have. The debates were only ever about taking books out.
"What about the lost gospels?" The so-called Gnostic gospels were written much later and signed with names like Peter, Thomas and Mary to give them credibility. They're known forgeries. And they teach things that contradict the rest of the Bible. One even says Jesus would make Mary "male" so she could enter the kingdom.
We also have more early copies of the New Testament than of any other ancient book, thousands of manuscripts in Greek alone. So we can be confident that what we read today is what was written.
But the best evidence is what happens when you read it. For centuries, Christians have found that this book is alive in a way no other book is. "The word of God is living and active, sharper than any two-edged sword" (Hebrews 4:12 ESV). And it's not going anywhere: "The grass withers, the flower fades, but the word of our God will stand forever" (Isaiah 40:8 ESV).
So read it, and read it well. The Bible is a library of 66 books, with poetry, history, letters, biographies and prophecy. It was written for you, but not to you, so context matters. Never read a Bible verse. Read the verses around it. And as you read, look for Jesus. The whole Bible points to Him.
Scripture: 2 Timothy 3:16–17; Exodus 17:14; 31:18; Joshua 24:26; John 14:26; 16:13; 2 Peter 3:15–16; Hebrews 4:12; Isaiah 40:8