What does the Bible claim about itself?
Peter claims that they did not make up the stories they told, but gave eyewitness accounts: “We did not follow cleverly invented stories when we told you about the power and coming of our Lord Jesus Christ, but we were eyewitnesses of his majesty. For he received honor and glory from God the Father when the voice came to him from the Majestic Glory, saying, ‘This is my Son, whom I love; with him I am well pleased.’ ” 2 Peter 1:16-17
Luke claimed to have carefully investigated eyewitness accounts and written down the truth: Inasmuch as many have undertaken to compile an account of the things accomplished among us, 2 just as they were handed down to us by those who from the beginning were eyewitnesses and servants of the word, 3 it seemed fitting for me as well, having investigated everything carefully from the beginning, to write it out for you in consecutive order, most excellent Theophilus; 4 so that you may know the exact truth about the things you have been taught. (Luke 1: 1-4, NASB)
Peter claimed that Paul’s writings were part of the holy scriptures: “Paul, according to the wisdom given to him, has written to you, 16 as also in all his epistles, speaking in them of these things, in which are some things hard to understand, which untaught and unstable people twist to their own destruction, as they do also the rest of the Scriptures.” (2 Peter 3:15-16)
Paul claimed that Matthew’s writings were holy scripture, when he quotes Matthew along with the Old Testament “For the Scripture says, “You shall not muzzle an ox while it treads out the grain,” and, “The laborer is worthy of his wages.” (1 Timothy 5:18, cf Matt 10:10)
Paul claimed that his own writings were holy scripture (1 Cor 2:10, 13; 14:37; )
John claimed his own writings were the word of God (Rev. 1:1)
An angel calls John a prophet (Rev. 22:9)
Paul claimed his own words were the word of God: “For this reason we also thank God without ceasing, because when you received the word of God which you heard from us, you welcomed it not as the word of men, but as it is in truth, the word of God,” (1 Thess. 2:13)
While this would certainly not satisfy the hardened unbeliever, it should be sufficient to silence those in liberal churches that hold to themselves to be Christian, but deny the literal truth of the Bible. The Bible claims that it is the word of God. For those who claim to be a child of God, this should be sufficient.