In the year of King Uzziah's death I saw the Lord sitting on a throne, lofty and exalted, with the train of His robe filling the temple. (please read vv 1-5 again)
God is far and away greater, higher, better, bigger, more awesome and magnificent, more beautiful and different than any other thing that exists or ever has existed or ever will exist!
Nothing is like God!
When Isaiah says, "I saw the Lord…lofty and exalted," it is like he is saying, when I saw God in His unconstrained glory, I realized that God stands alone in His category. He is not only different from any other thing, but He is infinitely better and greater. He is above everything else that is!
No wonder the psalmist cried out, "One thing I have asked from the LORD, that I shall seek: that I may dwell in the house of the LORD all the days of my life, to behold the beauty of the LORD and to meditate in His temple!" (Psalm 27:4).
No wonder also, that when all of humanity sees God as Isaiah did, "every knee will bow...and every tongue will confess that Jesus Christ is Lord, to the glory of God the Father" (Philippians 2:10-11).
What is God revealing to you about Himself today? Can you picture Him exalted on the throne, yet interacting with you? Respond to Him right now.