Holy means unique, set apart, different
As image bearers of God we are unique from everything else God created
1 Peter 1:13-16
Therefore, with your minds ready for action, be serious and set your hope completely on the grace to be brought to you at the revelation of Jesus Christ. As obedient children, do not be conformed to the desires of your former ignorance. But as the One who called you is holy, you also are to be holy in all your conduct; for it is written, Be holy, because I am holy.
The promise and power of God sets Him apart from all others
LORD, who is like You among the gods?
Who is like You, glorious in holiness,
revered with praises, performing wonders?
You stretched out Your right hand,
and the earth swallowed them.
You will lead the people
You have redeemed
with Your faithful love;
You will guide them to Your holy dwelling
with Your strength.
The presence of God is to be honored; to be entered into humbly
Our response to a Holy God should be worship and service
In the year that King Uzziah died, I saw the Lord seated on a high and lofty throne, and His robe filled the temple. Seraphim were standing above Him; each one had six wings: with two he covered his face, with two he covered his feet, and with two he flew. And one called to another:
Holy, holy, holy is the LORD of Hosts;
His glory fills the whole earth.
The foundations of the doorways shook at the sound of their voices, and the temple was filled with smoke.
Then I said:
Woe is me for I am ruined
because I am a man of unclean lips
and live among a people of unclean lips,
and because my eyes have seen the King,
the LORD of Hosts.
Then one of the seraphim flew to me, and in his hand was a glowing coal that he had taken from the altar with tongs. He touched my mouth with it and said:
Now that this has touched your lips,
your wickedness is removed
and your sin is atoned for.
Then I heard the voice of the Lord saying:
Who should I send?
Who will go for Us?
Here I am. Send me.