“Pay attention to Me, O My people, And give ear to Me, O My nation; For a law will go forth from Me, And I will set My justice for a light of the peoples”. (Isaiah 51:4)

justice . . . light to the peoples. The Servant’s rule over Israel’s earthly kingdom is to cause righteousness to prevail for the benefit of all nations. (John MacArthur)

This law is his judgment; for it is that law of liberty by which the world shall be governed and judged. This shall not only go forth, but shall continue and rest, it shall take firm footing and deep root in the world. It shall rest, not only for the benefit of the Jews, who had the first notice of it, but for a light of the people of other nations. It is this law, this judgment, that we are required to hearken and give ear to, at our peril; for how shall we escape if we neglect it and turn a deaf ear to it? When a law proceeds from God, he that has ears to hear, let him hear. 2. That this law and judgment shall bring with them righteousness and salvation, shall open a ready way to the children of men, that they may be justified and saved. (Matthew Henry)