Matthew Poole and continuators on Deuteronomy 31:9

9 And Moses wrote this law , and delivered it unto the priests the sons of Levi , which bare the ark of the covenant of the LORD, and unto all the elders of Israel .

Largely so called, the whole Law or Doctrine delivered unto Moses contained in these five books.

That they might keep it carefully and religiously, and bring it forth upon occasion, and read it, and instruct the people out of it.

To wit, sometimes in great solemnities, as Ios. 3. 13, 17. and 6. 12. 1 King. 8. 3. though the Levites also might bear it, as appears from Numb. 3. and 4. and 10. 1 Chron. 15. 2.

Who were Assistants to the Priests, and overseers to take care that the Law should be kept, and read, and observed.