4:2 Do not add a thing to what I command you nor subtract from it, so that you may keep the commandments of the Lord your God that I am delivering to 1 you.
Deuteronomy 4:5-6
4:5 Look! I have taught you statutes and ordinances just as the Lord my God told me to do, so that you might carry them out in 2 the land you are about to enter and possess.
4:6 So be sure to do them, because this will testify of your wise understanding 3 to the people who will learn of all these statutes and say, “Indeed, this great nation is a very wise 4 people.”