Deuteronomy 4:1, 5, 9, 14

And now, O Israel, hear the commandments and judgments which I teach thee that doing them thou mayst live, and entering in mayst possess the land which the Lord the God of your fathers will give you.

You know that I have taught you statutes and justices, as the Lord my God hath commanded me: so shall you do them in the land which you shall possess.

Keep thyself therefore, and thy soul carefully. Forget not the words that thy eyes have seen: and let them not go out of thy heart all the days of thy life. Thou shalt teach them to thy sons and to thy grandsons

And he commanded me at that time that I should teach you the ceremonies and judgments which you shall do in the land, that you shall possess.