Add not unto his words, lest he reprove you, and you be found a liar.
All Commentaries on Proverbs 30:6 Go To Proverbs 30
The Apostolic Constitutions
AD 375
You shall hate all hypocrisy; and whatever is pleasing to the Lord, that shall you do. By no means forsake the commands of the Lord. But you shall observe what things you have received from him, neither adding to them nor taking away from them. “For you shall not add unto his words, lest he convict you and you become a liar.” You shall confess your sins unto the Lord your God; and you shall not add unto them, that it may be well with you from the Lord your God, who wills not the death of a sinner but his repentance. .