Proverbs 30:6
Don't add to his words, or he will rebuke you, and you will be shown to be a liar.
Deuteronomy 4:2
Do not add or subtract a thing to what I'm commanding you. Observe the commands of the LORD your God.
Deuteronomy 12:32
Now as to everything I'm commanding you, you must be careful to observe it. Don't add to or subtract from it."
Job 13:7-9
Why do you speak falsely on God's behalf and speak deceitfully about him?
1 Corinthians 15:15
In addition, we are found to be false witnesses about God because we testified on God's behalf that he raised the Messiah whom he did not raise if in fact it is true that the dead are not raised.
Revelation 22:18-19
I warn everyone who hears the words of the prophecy in this book: If anyone adds anything to them, God will strike him with the plagues that are written in this book.