Isaiah sees what will happen in the latter days: the mountain of the Lord's house will be established as the highest, and the nations will stream to it. They will say to go up to the Lord's mountain so that he may teach them his ways and they may walk in his paths, for the law will go out from Zion and the word of the Lord from Jerusalem. He will judge between the peoples, and they will beat their swords into plowshares and their spears into pruning hooks; they will no longer learn war. The prophet invites the house of Jacob to walk in the Lord's light already.
The present, however, is very different. The Lord has rejected his people because they are full of diviners, of foreign influences in their faith, of wealth, horses and chariots. The land is full of idols made by human hands, before which people bow down.
So the day of the Lord comes against everything proud and lofty: the cedars of Lebanon, the mountains, the towers, the ships of Tarshish. Human pride will be brought low and only the Lord will be exalted. People will flee into caves and clefts of the rocks and throw their silver and gold idols to the moles and bats. The chapter ends with a call to stop trusting in man, whose breath is in his nostrils and who should not be so esteemed.