The glory of the Lord shall be revealed. — Did the prophet think of a vision of a glory-cloud, like the Shechinah which he had seen in the Temple? or had he risen to the thought of the glory of character and will, of holiness and love? (John 1:14.)
All flesh. — The revelation is not for Israel only, but for mankind. So in Luke 3:6, the words are quoted from the LXX., “all flesh shall see the salvation of God.” The phrase meets us here for the first time, and occurs again in Isaiah 49:26; Isaiah 66:16; Isaiah 66:23-24, marking, so to speak, the growing catholicity of the prophet’s thoughts. (See Note on Isaiah 38:11.)