Galatians 1:9
What we have told you in the past I am now telling you again: If anyone proclaims to you a gospel contrary to what you received, let that person be condemned!
Deuteronomy 4:2
Do not add or subtract a thing to what I'm commanding you. Observe the commands of the LORD your God.
Deuteronomy 12:32-11
Now as to everything I'm commanding you, you must be careful to observe it. Don't add to or subtract from it."
Proverbs 30:6
Don't add to his words, or he will rebuke you, and you will be shown to be a liar.
Romans 16:17
Now I urge you, brothers, to watch out for those who create divisions and sinful enticements that oppose the teaching you have learned. Stay away from them,
2 Corinthians 1:17
When I planned this, I did not do it lightly, did I? Are my plans so fickle that I can say "Yes" and "No" at the same time?
2 Corinthians 13:1-2
This will be the third time I am coming to you. "Every accusation must be verified by two or three witnesses."
Philippians 3:1
So then, my brothers, keep on rejoicing in the Lord. It is no trouble for me to write the same things to you; indeed, it is for your safety.
Philippians 4:4
Keep on rejoicing in the Lord at all times. I will say it again: Keep on rejoicing!
Revelation 22:18-19
I warn everyone who hears the words of the prophecy in this book: If anyone adds anything to them, God will strike him with the plagues that are written in this book.