Deuteronomy 4:8

5 Behold, I have taught you statutes and judgments, even as the LORD my God commanded me, that ye should do so in the land whither ye go to possess it.

6 Keep therefore and do [them]; for this [is] your wisdom and your understanding in the sight of the nations, which shall hear all these statutes, and say, Surely this great nation [is] a wise and understanding people.

7 For what nation [is there so] great, who [hath] God [so] nigh unto them, as the LORD our God [is] in all [things that] we call upon him [for]?

8 And what nation [is there so] great, that hath statutes and judgments [so] righteous as all this law, which I set before you this day?

9 Only take heed to thyself, and keep thy soul diligently, lest thou forget the things which thine eyes have seen, and lest they depart from thy heart all the days of thy life: but teach them thy sons, and thy sons’ sons;

10 [Specially] the day that thou stoodest before the LORD thy God in Horeb, when the LORD said unto me, Gather me the people together, and I will make them hear my words, that they may learn to fear me all the days that they shall live upon the earth, and [that] they may teach their children.

11 And ye came near and stood under the mountain; and the mountain burned with fire unto the midst of heaven, with darkness, clouds, and thick darkness.