Proverbs 30:6
Do not add to his words lest he rebuke you and you be found a liar.
Deuteronomy 4:2
You must not add to the word that I [am] commanding you, and you shall not take away from it [in order] to keep the commands of Yahweh your God that I [am] commanding you [to observe].
Deuteronomy 12:32
All of the things that I [am] commanding you, {you must diligently observe}; you shall not add to it, and you shall not take away from it."
Job 13:7-9
"Will you speak falsely for God? And will you speak deceitfully for him?
1 Corinthians 15:15
And also we are found [to be] false witnesses of God, because we testified against God that he raised Christ, whom he did not raise if after all, then, 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, God will add to him the plagues written in this book.