Galatians 1:9

As we have said before, I now also say again, if any man preaches a good-news to you contrary to what ye received, let him be accursed.

Deuteronomy 4:2

Ye shall not add to the word which I command you, neither shall ye diminish from it, that ye may keep the commandments of LORD your God which I command you.

Deuteronomy 12:32-11

Whatever thing I command you, that shall ye observe to do. Thou shall not add to it, nor diminish from it.

Proverbs 30:6

Add thou not to his words, lest he reprove thee, and thou be found a liar.

Romans 16:17

Now I beseech you, brothers, watch out for those who make the divisions and the stumbling blocks, contrary to the doctrine that ye learned, and turn away from them.

2 Corinthians 1:17

Therefore intending this, did I accordingly employ anything in lightness? Or what I decide, do I decide according to flesh, so that it would be with me the yes, yes and the no, no?

2 Corinthians 13:1-2

This third time I am coming to you. In the mouth of two witnesses or three every saying will be confirmed.

Philippians 3:1

Finally, my brothers, rejoice in Lord. To write the same things to you is really not irksome to me, but safe for you.

Philippians 4:4

Rejoice in Lord always. Again I will say, rejoice.

Revelation 22:18-19

I testify to every man who hears the words of the prophecy of this book, if any man should add to them, God will add to him the seven plagues that are written in this book.

Treasury of Scripture Knowledge

Summary

As we said before, so say I now again, If any man preach any other gospel unto you than that ye have received, let him be accursed.

General references

Bible References

So

2 Corinthians 1:17
Therefore intending this, did I accordingly employ anything in lightness? Or what I decide, do I decide according to flesh, so that it would be with me the yes, yes and the no, no?
2 Corinthians 13:1
This third time I am coming to you. In the mouth of two witnesses or three every saying will be confirmed.
Philippians 3:1
Finally, my brothers, rejoice in Lord. To write the same things to you is really not irksome to me, but safe for you.
Philippians 4:4
Rejoice in Lord always. Again I will say, rejoice.

Than

Deuteronomy 4:2
Ye shall not add to the word which I command you, neither shall ye diminish from it, that ye may keep the commandments of LORD your God which I command you.
Deuteronomy 12:32
Whatever thing I command you, that shall ye observe to do. Thou shall not add to it, nor diminish from it.
Deuteronomy 13:1
If there arise in the midst of thee a prophet, or a dreamer of dreams, and he gives thee a sign or a wonder,
Proverbs 30:6
Add thou not to his words, lest he reprove thee, and thou be found a liar.
Revelation 22:18
I testify to every man who hears the words of the prophecy of this book, if any man should add to them, God will add to him the seven plagues that are written in this book.

General references

Leviticus 15:8
And if he who has the issue spits upon him who is clean, then he shall wash his clothes, and bathe himself in water, and be unclean until the evening.
1 Corinthians 3:11
For no man can lay another foundation besides that which is laid, which is Jesus Christ.