Ye shall not add unto the word which I command you By desiring other doctrines, or ways of worship, than what I have taught or prescribed. For this were to accuse me of want of wisdom, or care, or faithfulness, in not giving you sufficient instructions for God's service. Neither shall ye diminish aught from it By rejecting or neglecting any thing which I have commanded, though it seem ever so small; but take my word, as it is, for your sole rule and guide in things temporal and eternal.
Related Commentaries of Deuteronomy 4:2
Deuteronomy 4:2
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.