Easton's Bible Dictionary

Law of Moses - is the whole body of the Mosaic legislation (1 Kings 2:3; 2 Kings 23:25; Ezra 3:2). It is called by way of eminence simply "the Law" (Heb. Torah, Deut. 1:5; 4:8, 44; 17:18, 19; 27:3, 8). As a written code it is called the "book of the law of Moses" (2 Kings 14:6; Isa. 8:20), the "book of the law of God" (Josh. 24:26).

The great leading principle of the Mosaic law is that it is essentially theocratic; i.e., it refers at once to the commandment of God as the foundation of all human duty.