Deuteronomy 4:1, 5, 9, 14

Now, Israel, hear the decrees and laws I am about to teach you. Follow them so that you may live and may go in and take possession of the land the LORD, the God of your ancestors, is giving you.

See, I have taught you decrees and laws as the LORD my God commanded me, so that you may follow them in the land you are entering to take possession of it.

Only be careful, and watch yourselves closely so that you do not forget the things your eyes have seen or let them fade from your heart as long as you live. Teach them to your children and to their children after them.

And the LORD directed me at that time to teach you the decrees and laws you are to follow in the land that you are crossing the Jordan to possess.