vs1- I saw the Lord sitting on a throne, lofty and exalted, with the train of His robe filling the temple. vs3- "Holy, Holy, Holy, is the LORD of hosts, The whole earth is full of His glory."
God is Holy! There are not ifs ands or buts about it! When you are confronted with His holiness it will cause you to fall on your face and worship Him. His holiness also brings about confession of sin.
Are you in touch with God's holiness? Is your heart full of worship and admiration for Him? Do you feel the need to confess sin? Think about it! Take some time to focus on God's holiness today. I know I am.