Galatians 1:9

As we said before, also now say I again, If any announce to you good news above what ye received, let him be anathema.

Deuteronomy 4:2

Ye shall not add to the word which I am commanding you, and ye shall not take away from it., to watch the commands of Jehovah your God which I am commanding you.

Deuteronomy 12:32-11

Every word which I command you, ye shall watch to do it: thou shalt not add upon it, and thou shalt not take away from it

Proverbs 30:6

Thou shalt not add to his words lest he reprove in thee, and thou wert false.

Romans 16:17

And I beseech you, brethren, to observe narrowly them having made divisions and scandals against the teaching which ye learned; and bend away from them.

2 Corinthians 1:17

Therefore I resolved this, much less did I use levity: or what I resolve, do I resolve according to the flesh, that there be with me yea, yea, and nay, nay

2 Corinthians 13:1-2

This third I come to you. By mouth of two witnesses, and three, shall every word be established.

Philippians 3:1

As to the rest, my brethren, rejoice in the Lord. To write the same things to you, to me is not slothful, and to you safe.

Philippians 4:4

Rejoice in the Lord always: again say I, Do ye rejoice.

Revelation 22:18-19

For I testify to every one hearing the words of the prophecy of this book, If any add to these things, God will add to him the blows 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 I resolved this, much less did I use levity: or what I resolve, do I resolve according to the flesh, that there be with me yea, yea, and nay, nay
2 Corinthians 13:1
This third I come to you. By mouth of two witnesses, and three, shall every word be established.
Philippians 3:1
As to the rest, my brethren, rejoice in the Lord. To write the same things to you, to me is not slothful, and to you safe.
Philippians 4:4
Rejoice in the Lord always: again say I, Do ye rejoice.

Than

Deuteronomy 4:2
Ye shall not add to the word which I am commanding you, and ye shall not take away from it., to watch the commands of Jehovah your God which I am commanding you.
Deuteronomy 12:32
Every word which I command you, ye shall watch to do it: thou shalt not add upon it, and thou shalt not take away from it
Deuteronomy 13:1
When there shall arise in the midst of you a prophet, or a dreamer of dreams, and he gave to thee a sign or a wonder,
Proverbs 30:6
Thou shalt not add to his words lest he reprove in thee, and thou wert false.
Revelation 22:18
For I testify to every one hearing the words of the prophecy of this book, If any add to these things, God will add to him the blows written in this book:

General references

Leviticus 15:8
And if he flowing shall spit upon the clean; and he washed his garments, and washed in water, and was unclean till the evening.
1 Corinthians 3:11
For none is able to lay another foundation above that laid, which is Jesus the Christ.