Galatians 1:9
As we said before, so do I say now again, If anyone preaches any other gospel unto you than what ye have received, let him be anathema.
Deuteronomy 4:2
Ye shall not add unto the word which I command you, neither shall ye diminish anything from it, that ye may keep the commandments of the LORD your God which I command you.
Deuteronomy 12:32-11
Keep thyself, and do all that I command you; thou shalt not add to it nor diminish from it.
Proverbs 30:6
Do not add unto his words, lest he reprove thee, and thou be found a liar.
Romans 16:17
And I beseech you, brethren, mark those who cause dissensions and offences outside of the doctrine which ye have learned, and avoid them.
2 Corinthians 1:17
When I, therefore, was thus minded, did I use lightness? or the things that I purpose, do I purpose according to the flesh, that of me there should be yes, yes, and no, no?
2 Corinthians 13:1-2
This third time I am coming unto you. In the mouth of two or three witnesses shall every word be established.
Philippians 3:1
It remains, my brethren, that ye rejoice in the Lord. It does not bother me to write the same things to you, and for you it is safe.
Philippians 4:4
Rejoice in the Lord always, and again I say, Rejoice.
Revelation 22:18-19
For I testify unto everyone that hears the words of the prophecy of this book, If anyone shall add unto these things, God shall add unto him the plagues that are written in this book;