Reading Isaiah 2, he warns against the proud quite a lot (v6-22), warning them what will happen at the time of the Second Coming. I think Alma 12:14 summarizes it nicely: "we would fain be glad if we could command the rocks and the mountains to fall upon us, to hide us from his presence."
The message seems to be that, while they are rich in their wordly accounts (v7) and they have sought after a life of worldliness (v8), that when the Lord comes, they will not be forgiven (v9), and they will in agony seek to separate them from themselves (v20-21). The Lord will bring them all low, and He alone will be exalted, and destroy their riches, and their wicked works (the idols: the results of their hands) (v17-18).
When we stand before the Lord, everything we have sought with worldly desires will mean nothing.
See also 2 Nephi 9:28-30. Isaiah 2 is the first chapter quoted by Nephi (2 Nephi 12).