I Don't Get Isaiah

But I love some of his writing:

The whole earth is at rest, and is quiet: they break forth into singing. Isaiah 14:7

I've been reading the Bible and the Book of Mormon over and over again for most of my life, and while there are definitely parts of Isaiah's words that I just don't understand at all, there are also parts and passages that resonate with me, and many passages that give a bright and hopeful view of what life with God will be like:

They shall not hurt nor destroy in all my holy mountain: for the earth shall be full of the knowledge of the Lord, as the waters cover the sea. Isaiah 11:9

So even if I don't understand all the things Isaiah said about Calno and Carchemish and other wars in Jerusalem, I can still find joy in the spirit of his words, and the poetry.