14 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.

Read Deuteronomy 4:14 Using Other Translations

And the LORD commanded me at that time to teach you statutes and judgments, that ye might do them in the land whither ye go over to possess it.
And the LORD commanded me at that time to teach you statutes and rules, that you might do them in the land that you are going over to possess.
It was at that time that the LORD commanded me to teach you his decrees and regulations so you would obey them in the land you are about to enter and occupy.