'Book of the Law' in the Bible

Ezra read from it, facing the plaza in front of the Water Gate, from early in the morning until mid-day in the presence of the men and women, as well as all who could understand. All the people were attentive to the Book of the Law.

All the people gathered as a united body into the plaza in front of the Water Gate. They asked Ezra the scribe to bring out the Book of the Law of Moses, which the LORD had commanded for Israel.

and Ezra continued to read from the Book of the Law of God day by day, from the first day through the last. They celebrated for seven days, and on the eighth day they held a solemn assembly according to regulation.

While they stood there, they read from the Book of the Law of the LORD their God for one fourth of the day, and they confessed and worshipped the LORD their God for another fourth of the day.