Deuteronomy 4:2
2 yYou shall not add to the word that I command you, nor take from it, that you may keep the commandments of the Lord your God that I command you.
Deuteronomy 12:32
32 “Everything that I command you, you shall be careful to do. pYou shall not add to it or take from it.
Proverbs 30:6
6 vDo not add to his words,
lest he rebuke you and you be found a liar.