1:1-7 The earth is called upon, with all that are therein, to hear the prophet. God's holy temple will not protect false professors. Neither men of high degree, as the mountains, nor men of low degree, as the valleys, can secure themselves or the land from the judgments of God. If sin be found in God's people he will not spare them; and their sins are most provoking to him, for they are most reproaching. When we feel the smart of sin, it behoves us to seek what is the sin we smart for. Persons and places most exalted, are most exposed to spiritual diseases. The vices of leaders and rulers shall be surely and sorely punished. The punishment answers the sin. What they gave to idols, never shall prosper, nor do them any good. What is got by one lust, is wasted on another.
3. tread upon the high places of the earth—He shall destroy the fortified heights (compare De 32:13; 33:29) [Grotius].