Galatians 1:9
As I said before, so say I now again, if any man preach any other thing unto you, than that ye have received, hold him accursed.
Deuteronomy 4:2
Ye shall put nothing unto the word which I command you, neither do ought therefrom, that ye may keep the commandments of the LORD your God which I command you.
Deuteronomy 12:32-11
But whatsoever I command you, that take heed ye do: and put nought thereto, nor take ought therefrom.
Proverbs 30:6
Put thou nothing therefore unto his words, lest he reprove thee, and thou be found as a liar.
Romans 16:17
I beseech you, brethren: mark them which cause division, and give occasions of evil contrary to the doctrine which ye have learned; and avoid them.
2 Corinthians 1:17
When I thus wise was minded: Did I use lightness? Or think I carnally those things which I think, that with me should be "yea, yea," and "nay, nay?"
2 Corinthians 13:1-2
Now come I the third time unto you: "In the mouth of two or three witnesses shall everything stand."
Philippians 3:1
Moreover, my brethren, rejoice in the Lord. It grieveth me not to write one thing often to you. For to you it is a sure thing.
Philippians 4:4
Rejoice in the Lord always, and again I say rejoice.
Revelation 22:18-19
I testify unto every man that heareth the words of prophecy of this book: if any man shall add unto these things, God shall add unto him the plagues that are written in this book.