The eyes of the arrogant man will be humbled and the pride of men brought low; the Lord alone will be exalted in that day. The Lord Almighty has a day in store for all the proud and lofty, for all that is exalted (and they will be humbled), for all the cedars of Lebanon, tall and lofty, and all the oaks of Bashan, for all the towering mountains and all the high hills, for every lofty tower and every fortified wall, for every trading ship and every stately vessel. The arrogance of man will be brought low and the pride of men humbled; the Lord alone will be exalted in that day, and the idols will totally disappear.
Isaiah is telling the people that all the material things around them that they take pride in are going to be destroyed. He is once again asking the people to humble themselves willingly. This passage seems even more relevant to our world today as we have all the marvelous things that people have made and we take pride in owning them. From fancy cars to homes to even the latest mobile phone, these things too shall pass away as Isaiah says. Mankind must stop the worship of man made objects and turn back to God (humble ourselves) because, on that day, the Creator is going to be exalted and not the creation.