Proverbs 30:6

Don't you add to his words, lest he reprove you, and you be found a liar.

Deuteronomy 4:2

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

Deuteronomy 12:32

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

Job 13:7-9

Will you speak unrighteously for God, and talk deceitfully for him?

1 Corinthians 15:15

Yes, we are found false witnesses of God, because we testified about God that he raised up Christ, whom he didn't raise up, if it is so that the dead are not raised.

Revelation 22:18-19

I testify to everyone who hears the words of the prophecy of this book, if anyone adds to them, may God add to him the plagues which are written in this book.

Treasury of Scripture Knowledge

Summary

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

General references

Bible References

Add

Deuteronomy 4:2
You shall not add to the word which I command you, neither shall you diminish from it, that you may keep the commandments of Yahweh your God which I command you.
Deuteronomy 12:32
Whatever thing I command you, that you shall observe to do: you shall not add thereto, nor diminish from it.
Revelation 22:18
I testify to everyone who hears the words of the prophecy of this book, if anyone adds to them, may God add to him the plagues which are written in this book.

And

Job 13:7
Will you speak unrighteously for God, and talk deceitfully for him?
1 Corinthians 15:15
Yes, we are found false witnesses of God, because we testified about God that he raised up Christ, whom he didn't raise up, if it is so that the dead are not raised.

General references

Deuteronomy 4:2
You shall not add to the word which I command you, neither shall you diminish from it, that you may keep the commandments of Yahweh your God which I command you.