Which book of the Bible is recognized as the "Book of the Law"?

The Book of Deuteronomy is recognized as the "Book of the Law" because it contains a restatement and expansion of the laws given to the Israelites. In this book, Moses outlines the commandments and instructions that God gave to the people, emphasizing obedience and adherence to these laws as they prepare to enter the Promised Land. Deuteronomy serves as a critical recap of the covenant between God and Israel, reinforcing their responsibilities and the blessings associated with obedience, as well as the consequences of disobedience. This culmination of the legal material found in the previous books highlights its importance as the definitive guide for the Israelites’ conduct and relationship with God. Thus, it is rightly identified as the "Book of the Law."