Deuteronomio 4:2

Ye shall not add unto the word which I command you, neither shall ye diminish ought from it, that ye may keep the commandments of the LORD your God which I command you. Ye shall not add - Any book, chapter, verse or word, which I have not spoken; nor give any comment that has any tendency to corrupt, weaken, or destroy any part of this revelation.

Neither shall ye diminish - Ye shall not only not take away any larger portion of this word, but ye shall not take one jot or tittle from the Law; it is that word of God that abideth for ever.