III. The subject of the prophecy. It was what he saw concerning Judah and Jerusalem, the country of the two tribes, and that city which was their metropolis; and there is little in it relating to Ephraim, or the ten tribes, of whom there is so much said in the prophecy of Hosea. Some chapters there are in this book which relate to Babylon, Egypt, Tyre, and some other neighbouring nations; but it takes its title from that which is the main substance of it, and is therefore said to be concerning Judah and Jerusalem, the other nations spoken of being such as the people of the Jews had concern with. Isaiah brings to them in a special manner, 1. Instruction; for it is the privilege of Judah and Jerusalem that to them pertain the oracles of God. 2. Reproof and threatening; for if in Judah, where God is known, if in Salem, where his name is great, iniquity be found, they, sooner than any other, shall be reckoned with for it. 3. Comfort and encouragement in evil times; for the children of Zion shall be joyful in their king.