Here are 12 Bible verses about the authority of Scripture from the Old and New Testaments of the Holy Bible (King James Version), sorted from most to least relevant.
Matthew 5:17-19 KJV
Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil. For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled. Whosoever therefore shall break one of these least commandments, and shall teach men so, he shall be called the least in the kingdom of heaven: but whosoever shall do and teach them, the same shall be called great in the kingdom of heaven.
Isaiah 40:8 KJV
The grass withereth, the flower fadeth: but the word of our God shall stand for ever.
1 Thessalonians 2:13 KJV
For this cause also thank we God without ceasing, because, when ye received the word of God which ye heard of us, ye received it not as the word of men, but as it is in truth, the word of God, which effectually worketh also in you that believe.
2 Kings 22:11 KJV
And it came to pass, when the king had heard the words of the book of the law, that he rent his clothes.
Ezra 10:1-4 KJV
Now when Ezra had prayed, and when he had confessed, weeping and casting himself down before the house of God, there assembled unto him out of Israel a very great congregation of men and women and children: for the people wept very sore. And Shechaniah the son of Jehiel, one of the sons of Elam, answered and said unto Ezra, We have trespassed against our God, and have taken strange wives of the people of the land: yet now there is hope in Israel concerning this thing. Now therefore let us make a covenant with our God to put away all the wives, and such as are born of them, according to the counsel of my lord, and of those that tremble at the commandment of our God; and let it be done according to the law. Arise; for this matter belongeth unto thee: we also will be with thee: be of good courage, and do it.
Joshua 23:6 KJV
Be ye therefore very courageous to keep and to do all that is written in the book of the law of Moses, that ye turn not aside therefrom to the right hand or to the left;
Psalms 119:89 KJV
For ever, O LORD, thy word is settled in heaven.
Joshua 1:8 KJV
This book of the law shall not depart out of thy mouth; but thou shalt meditate therein day and night, that thou mayest observe to do according to all that is written therein: for then thou shalt make thy way prosperous, and then thou shalt have good success.
John 10:34-36 KJV
Jesus answered them, Is it not written in your law, I said, Ye are gods? If he called them gods, unto whom the word of God came, and the scripture cannot be broken; Say ye of him, whom the Father hath sanctified, and sent into the world, Thou blasphemest; because I said, I am the Son of God?
Luke 16:17 KJV
And it is easier for heaven and earth to pass, than one tittle of the law to fail.
Nehemiah 13:1-3 KJV
On that day they read in the book of Moses in the audience of the people; and therein was found written, that the Ammonite and the Moabite should not come into the congregation of God for ever; Because they met not the children of Israel with bread and with water, but hired Balaam against them, that he should curse them: howbeit our God turned the curse into a blessing. Now it came to pass, when they had heard the law, that they separated from Israel all the mixed multitude.
Luke 21:21-23 KJV
Then let them which are in Judaea flee to the mountains; and let them which are in the midst of it depart out; and let not them that are in the countries enter thereinto. For these be the days of vengeance, that all things which are written may be fulfilled. But woe unto them that are with child, and to them that give suck, in those days! for there shall be great distress in the land, and wrath upon this people.