Deuteronomy 12:32
“Everything I command you, you shall be careful to do it; you shall not add to it nor take away from it.
Deuteronomy 4:2
You shall not add to the word which I am commanding you, nor take away from it, so that you may keep the commandments of the Lord your God which I am commanding you.
Joshua 1:7
Only be strong and very courageous; be careful to do [everything] in accordance with the entire law which Moses My servant commanded you; do not turn from it to the right or to the left, so that you may prosper and be successful wherever you go.
Proverbs 30:6
Do not add to His words,
Or He will reprove you, and you will be found a liar.
Revelation 22:18-19
I testify and warn everyone who hears the words of the prophecy of this book [its predictions, consolations, and admonitions]: if anyone adds [anything] to them, God will add to him the plagues (afflictions, calamities) which are written in this book;
Deuteronomy 13:18
because you have listened to and obeyed the voice of the Lord your God, keeping all His commandments which I am commanding you today, and doing what is right in the eyes of the Lord your God.
Matthew 28:20
Treasury of Scripture Knowledge
Summary
Thou shalt not
Bible References
Thou shalt not
Do not add to His words,
Or He will reprove you, and you will be found a liar.
General references
You have ordained Your precepts,
That we should follow them with [careful] diligence.