Deuteronomy 4:5

Behold, I have taught you statutes and judgments, even as the Lord my God commanded me,.... He had faithfully delivered them, without adding them, or diminishing from them, and had diligently instructed the Israelites in them, had taken pains to lead them into a thorough knowledge and understanding them:

that ye should do so in the land whither ye go possess it; do in like manner as the commandments the Lord direct to; or that which is right e; proper and fitting to be done, by doing which they continue in the land they were about to possess, therefore when in it were to be careful to them; some of them could not be done till they came into it, and all were to be done in it.

e כן "rectum".