The scriptures claim to be "The very words of God" (Romans 3:2), written by people who were guided by the Holy Spirit (2 Peter 1:21). The human authors of the Bible reguarded their writings as revelations from God (Exodus 24:3-4; Galations 1:12) and took great care in recording the words of God. (Luke 1:1-4; John 21:24).
JESUS SAID SO.
Jesus constantly defended the authority and reliability of Scripture, and he promised the supernatural completion of the new testament (John 10:35; 14:26).
Even though we do not have the origional Biblical manuscripts. we can still trust our modern day Bibles. The dead sea scrolls date back to the first century A.D. and verify that the old Testament was handed down through the years with great care. The New Testament is authenticated by thousands of Greek manuscpirts, some as early as the second and third century A.D.- very near the time of the origional documents. No wonder the New Testament is considered the most attested ancient document of its kind!
Excavations in this century have constantly confirmed-rather than contradicted-theaccuracy of scripture.