Is it possible to prove the infallibility of the Bible?

TL;DR:

God's omnipotence and perfection means He speaks the truth and does not tell lies or make mistakes. Since God can't err, then His Word, the Bible, can't err either.

Although the terms infallibility and inerrancy are sometimes used interchangeably, they are slightly different. Infallibility refers to the Bible’s inability to err in all it affirms, while inerrancy means the absence of any error. When referring to Scripture, the term infallible means the Bible is reliable and trustworthy (Joshua 21:45). The proof of biblical infallibility starts with the Bible itself. Passages such as Proverbs 30:5, 2 Timothy 3:16-17 and 2 Peter 1:21 claim the Bible comes from God. If the Word of God comes from God, and God is not capable of making mistakes, then His Word must also be incapable of mistakes, that is, infallible. Inductive reasoning can also demonstrate the infallibility of the Bible. Evidence from ancient manuscripts, archaeology, historical records, fulfilled prophecy, and modern intelligent design theory all contribute to validate the Bible. The central event in the Bible, the resurrection of Christ, is historically verified by many witnesses, showing the trustworthiness of the Bible.

from the old testament

"Not one word of all the good promises that the Lord had made to the house of Israel had failed; all came to pass" (Joshua 21:45). The Word of God is reliable and trustworthy.
Proverbs 30:5 tells us, "Every word of God proves true.”

from the new testament

"All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness, that the man of God may be complete, equipped for every good work" (2 Timothy 3:16-17). Scripture itself declares it is inspired (God-breathed).
It is impossible for God to lie (Hebrews 6:18).
2 Peter 1:20—21 shows us the infallibility of the Bible: "knowing this first of all, that no prophecy of Scripture comes from someone's own interpretation. For no prophecy was ever produced by the will of man, but men spoke from God as they were carried along by the Holy Spirit.”

implications for today

The following three-step approach demonstrates infallibility without assuming biblical inspiration. First, an abundance of academic research confirms that the Gospels are reliable accounts of the life of Christ. The Gospels have been tested according to the standard methods of historical research.

Second, since the Gospel accounts are reliable, we can know how Jesus viewed Scripture because He tells us in the Gospels. Jesus consistently affirmed the divine authority and complete reliability of all categories of Hebrew Scripture, frequently quoting from every section—the Torah, the prophets, and the writings. In John 10:35, he calls the Old Testament “the Word of God,” adding, “and the Scripture cannot be broken,” implying infallibility. Christ further indicated that his own words were also God’s words since both are eternal (Isaiah 40:8; Matthew 24:35). Thus, Jesus’ words in the Gospels had the same authority as God’s words in the Old Testament, which Jesus viewed as the infallible Word of God.

Third, in the upper room on the night of Jesus’ betrayal, He promised His disciples that the Holy Spirit would be given to them to bring to their remembrance the past things he’d taught them (John 14:26) and also to guide them into all future truth (John 16:13). Thus, Jesus transferred His authority to His Apostles to continue His mission and to provide divinely ordained instruction that carried the same authority as Christ himself—which is exactly how the early church understood their authority. Since we have good reason to trust Jesus’ opinion, we have good reason to trust the authority and reliability of the Bible—both Old Testament and New—that He fully endorsed.

understand

The Bible claims divine origin and cannot contain error because God, its source, cannot lie or make mistakes.
Historical, archaeological, prophetic, and manuscript evidence support the Bible’s reliability and truthfulness.
Jesus affirmed the infallibility of Scripture.

reflect

How does believing in the Bible’s infallibility shape the way you respond to its commands and promises?
When have you doubted parts of Scripture, and how did you deal with those doubts in light of God's truthfulness?
Where would you like to strengthen your trust in the Bible’s reliability?

engage

What evidence—biblical or historical—do we find most compelling when discussing the Bible’s infallibility?
How does Jesus’ view of Scripture challenge or reinforce how we engage with the Old and New Testaments today?
How can we help others understand the difference between trusting the Bible and blindly accepting it?