Why You Can Trust the Bible

Perhaps you’ve heard reference to a “Bible-believing” church, or perhaps you’ve been told the Bible is the “Word of God” and can be trusted. But why is it that we can trust this book? And why would churches stake their reputation on believing it?

While I could give many reasons to support the essential trustworthiness of the Bible, perhaps the most important reason is simply that Jesus trusted it.

The Bible Speaks; Jesus Speaks

Luke concludes his narrative of Jesus’ life with a brief discussion between the risen Christ and his disciples (Luke 24:44-49). And in this narrative, Jesus’ parting words are words of trust in the Bible’s reliability.

Then he said to them, “These are my words that I spoke to you while I was still with you, that everything written about me in the Law of Moses and the Prophets and the Psalms must be fulfilled.”

Luke 24:44

Jesus believes not only that the Bible speaks, but that it speaks about him. He refers specifically to the three divisions of the Hebrew Bible (what we call the Old Testament): the Law, the Prophets, and the Psalms (the Psalms were the most identifiable part of the poetic books, or “Writings”). And the things written in these three sections are about him.

In addition, those are the very words Jesus himself spoke to them while he was ministering among them. So the Hebrew Bible speaks about Jesus, and Jesus has spoken those same things about himself.

Speaks about What, Exactly?

But what exactly do the Hebrew Scriptures say about Jesus, which he underscored in his own teaching?

Then he opened their minds to understand the Scriptures, and said to them, “Thus it is written, that the Christ should suffer and on the third day rise from the dead, and that repentance for the forgiveness of sins should be proclaimed in his name to all nations, beginning from Jerusalem.

Luke 24:45-47

The message of the Old Testament can be summarized in four points:

1. The Christ should suffer.
2. The Christ should rise from the dead.
3. The Christ’s suffering and rising make forgiveness possible for those who repent.
4. This message should be proclaimed to all nations everywhere.

This is what the Bible says. This is what Jesus himself says.

Jesus Speaks; the Apostles Speak

But that’s not all. This message must go out, but how?

You are witnesses of these things. And behold, I am sending the promise of my Father upon you. But stay in the city until you are clothed with power from on high.” 

Luke 24:48-49

Now that Jesus has affirmed the message of the Old Testament—which lines up with his own message about himself—he calls his disciples to do something new. He wants them to bear witness of these things as well. He will send the promise and power of the Father to help with this task (Luke’s next volume, the book of Acts, will tell us that the Father’s promise and power is the indwelling Holy Spirit).

So what is Jesus (and Luke) referring to when he speaks of the apostolic witness to these things? Certainly this includes the marvelous preaching that will take place over the next generation, some of which is recorded in Acts. But it has particular reference not only to the preaching but especially to the writings of these witnesses. Matthew, John, and Peter were almost certainly present when Jesus spoke these words. Perhaps James and Jude were as well. Paul would later receive a similar commission (Acts 26:16)

So Jesus relies on the witness they will speak and write, a witness which will be empowered and directed by nothing short of the Spirit of the Father. A witness that we call the New Testament.

Conclusion

Jesus came with a message to proclaim about himself—who he was and what he came to do. This message was enshrined in the Old Testament, and it would be reinforced by the New Testament.

So why can we trust the Bible? Because Jesus did. He trusted the Old Testament, for it spoke about him. And he trusted the New Testament, because it would speak about him. “These are my words that I spoke to you while I was still with you” (Luke 24:44).

Though Jesus has ascended to heaven and no longer walks the earth in the flesh (at least, for a time), he still speaks to us through the words of the Old and New Testaments. He trusted them, and therefore so can we.