And they were calling to one another:
“Holy, holy, holy is the LORD Almighty;
the whole earth is full of his glory.”
At the sound of their voices the doorposts and thresholds shook and the temple was filled with smoke.
“Woe to me!” I cried. “I am ruined! For I am a man of unclean lips, and I live among a people of unclean lips, and my eyes have seen the King, the LORD Almighty.”
Holiness is key to our worship. To be holy is to be set apart. Isaiah recognized this when his eyes fell upon the Lord. God is set apart from us because our sin is a barrier between us and God.
Basically anything can be worshipped if we put it in a place of importance. We give special significance to it by the amount of time we spend with it or the money we spend on it. We place our trust in it to make us happy or comfort us.
Only God may be worshipped as holy however. Each of us has a God shaped hole that TV, sports, family, reading, or anything else can’t fill.
When we recognize God as holy, we realize like Isaiah did, that we’re not holy. Only God can make us holy. Isaiah’s lips were ceremonially made holy by the touching of a hot coal to them. We are literally made holy by the washing away of our sins through the blood of Jesus Christ.
When we recognize that God is holy and that He can make us holy as well, that is a real reason to worship and sing holy, holy, holy just like the angels.