Galatians 1:9
As we have said before, so I say again now, if any one is preaching to you a gospel contrary to what you received, let him be accursed!
Romans 16:17
I urge you, brethren, to take note of those who cause divisions and difficulties, contrary to the doctrine which you have learned; avoid them.
2 Corinthians 1:17
When I was planning this, did I do it lightly? Or do I make my plans in a fleshly manner so that in the same breath I say, "Yes, Yes" and "No, No"?
2 Corinthians 13:1-2
This is the third time I am coming to you. Every charge must be established by the evidence of two or three witnesses.
Philippians 3:1
Finally, my brethren, rejoice in the Lord. To write the same things to you again is no trouble to me, and it is a safeguard for you.
Philippians 4:4
Rejoice in the Lord always; again I will say, Rejoice!
Revelation 22:18-19
I warn everyone who hears the words of the prophecy of this book: if anyone adds to them, God will add to him the plagues described in this book,