The Bible is the Word of God. It is inspired and inerrant in its original autographs. It is a complete and final revelation of God.

2 Timothy 3:16-17

All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness: that the man of God may be perfect, thoroughly furnished unto all good works.

2 Peter 1:19-21

We have also a more sure word of prophecy; whereunto ye do well that ye take heed, as unto a light that shineth in a dark place,until the day down, and the day-star arise in your hearts; knowing this first, that no prophecy of the Scripture is of any private interpretation. For the prophecy came not in old time by the will of man: but holy men of God spake as they were moved by the Holy Ghost.

Revelation 22:18-19

For I testify unto every man that heareth the words of the prophecy of this book, If any man shall addunto these things, God shall addunto him the plagues that are written in this book; and if any man shall take away from the words of the book of this prophecy, God shall take away his part out of the book of life, and out of the holy city, and from the things which are written in this book.