Galatians 1:9
As we have said before, and now I say again, if any one is preaching to you a gospel contrary to what you received, let him be condemned to hell!
Deuteronomy 4:2
Do not add a thing to what I command you nor subtract from it, so that you may keep the commandments of the Lord your God that I am delivering to you.
Deuteronomy 12:32-11
You must be careful to do everything I am commanding you. Do not add to it or subtract from it!
Proverbs 30:6
Do not add to his words, lest he reprove you, and prove you to be a liar.
Romans 16:17
Now I urge you, brothers and sisters, to watch out for those who create dissensions and obstacles contrary to the teaching that you learned. Avoid them!
2 Corinthians 1:17
Therefore when I was planning to do this, I did not do so without thinking about what I was doing, did I? Or do I make my plans according to mere human standards so that I would be saying both "Yes, yes" and "No, no" at the same time?
2 Corinthians 13:1-2
This is the third time I am coming to visit you. By the testimony of two or three witnesses every matter will be established.
Philippians 3:1
Finally, my brothers and sisters, rejoice in the Lord! To write this again is no trouble to me, and it is a safeguard for you.
Philippians 4:4
Rejoice in the Lord always. Again I say, rejoice!
Revelation 22:18-19
I testify to the one who hears the words of the prophecy contained in this book: If anyone adds to them, God will add to him the plagues described in this book.