Deuteronomy 4:1-3

1And now, Israel, hearken to the statutes and to the ordinances which I teach you, to do [them], that ye may live, and go in and possess the land which Jehovah the 1God of your fathers giveth you.

2Ye shall not add to the word which I command you, neither shall ye take from it, that ye may keep the commandments of Jehovah your 2God which I command you.

3Your eyes have seen what Jehovah did because of Baal-Peor; for all the men that followed Baal-Peor, Jehovah thy 3God hath destroyed them from among you;