Proverbs 30:6

Do not 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 take away from it, so that you may keep the commands of Jehovah your God which I command you.

Deuteronomy 12:32

All the things I command you, be careful to do it. You shall not add to it, nor take away from it.

Job 13:7-9

Would you speak unrighteously for God, and talk deceitfully for Him?

1 Corinthians 15:15

And we are also found to be false witnesses of God, because we testified of God that He raised Christ; whom He did not raise if the dead are not raised.

Revelation 22:18-19

For I testify together to everyone who hears the Words of the prophecy of this Book: If anyone adds to these things, God will add on him the plagues that have been 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 take away from it, so that you may keep the commands of Jehovah your God which I command you.
Deuteronomy 12:32
All the things I command you, be careful to do it. You shall not add to it, nor take away from it.
Revelation 22:18
For I testify together to everyone who hears the Words of the prophecy of this Book: If anyone adds to these things, God will add on him the plagues that have been written in this Book.

And

Job 13:7
Would you speak unrighteously for God, and talk deceitfully for Him?
1 Corinthians 15:15
And we are also found to be false witnesses of God, because we testified of God that He raised Christ; whom He did not raise if the dead are not raised.

General references

Deuteronomy 4:2
You shall not add to the Word which I command you, neither shall you take away from it, so that you may keep the commands of Jehovah your God which I command you.