4 Bible Verses about Adding to the Bible

I testify to every one that hears the words of the prophecy of this book. If any one adds to them, God shall add to him the plagues written in this book; and if any one takes away from the words of the book of this prophecy, God shall take away his part from the tree of life, and the holy city, described in this book.

And Jesus answered and said to them, You err, not knowing the Scriptures, nor the power of God.

making the word of God of no effect by your tradition which you have delivered; and many such things you do.

For false Christs and false prophets shall be raised up, and shall show great signs and wonders, so as to deceive, if possible, even the elect.