Theme 6: The Holiness of God
“And one called out to another and said, ‘Holy, Holy, Holy, is the Lord of armies, the whole earth is full of His glory.’” — Isaiah 6:3
Theme Introduction: The Absolute Uniqueness of God
In the previous theme, we saw that God reveals Himself through His glory—His character and nature made visible and known. Now we must ask:
What is it about God that makes His glory so overwhelming, so weighty, and so distinct?
Scripture gives a clear and repeated answer:
God is holy.
Holiness is not just one attribute among many. It is not simply a moral quality or a religious category.
Holiness describes the absolute uniqueness, purity, and “otherness” of God.
When Scripture declares that God is holy, it is saying:
He is unlike anything else
He is set apart from all creation
He is completely pure and without defect
Everything we have already seen about God—His eternity, His self-existence, His unchanging nature—converges here.
God is holy because He is entirely distinct from everything that is not God.
To understand the King and His Kingdom, we must understand this:
God is not merely greater than creation—
He is categorically different from it.
Tracing the Theme Through Scripture
1. God Is Declared Holy Above All
One of the most striking features of Scripture is how it emphasizes God’s holiness above all His attributes.
In Isaiah 6:3, the seraphim cry out:
“Holy, Holy, Holy, is the Lord of armies…”
The repetition is significant. In Hebrew thought, repetition intensifies meaning. To say something three times is to declare it in the strongest possible terms.
Scripture does not say: “Love, love, love”
or “Power, power, power”
But it does say:
“Holy, Holy, Holy.”
This tells us:
Holiness is central to understanding who God is.
Similarly, Revelation 4:8 echoes this same declaration in heaven:
“Holy, Holy, Holy is the Lord God, the Almighty…”
From Isaiah to Revelation, the testimony is consistent.
God’s holiness is eternally recognized and proclaimed.
2. Holiness Means “Set Apart”
At its core, holiness means “set apart” or “distinct.”
When applied to God, this means:
He is not part of creation
He is not comparable to anything
He is entirely unique
Isaiah 40:25 captures this:
“To whom then will you compare Me that I would be his equal?” says the Holy One.
There is no comparison point. Nothing in creation can fully represent Him.
God is not simply the greatest being—He is a different kind of being altogether.
This is why attempts to reduce God to something familiar always fall short.
He is not like a human, only greater
He is not like creation, only more powerful
He is wholly other.
3. God’s Holiness Includes Absolute Moral Purity
Holiness is not only about God’s uniqueness—it also includes His complete moral purity.
God is:
perfectly righteous
completely without sin
entirely pure in all His ways
Habakkuk 1:13 says:
God’s eyes are too pure to approve evil, and He cannot look favorably on wrongdoing.
This does not mean God is unaware of sin. It means:
He does not tolerate, approve, or participate in it in any way.
1 John 1:5 says:
“God is light, and in Him there is no darkness at all.”
Not partial darkness. Not occasional darkness.
No darkness at all.
This is absolute purity.
4. God’s Holiness Creates Distance Between Him and Sin
Because God is holy, sin creates a real separation.
In Isaiah 6, when the prophet sees the Lord, his response is immediate and intense:
“Woe is me, for I am ruined! Because I am a man of unclean lips…”
Isaiah does not feel curiosity—he feels undone.
Why?
Because:
he sees God’s holiness
he becomes aware of his own sinfulness
Holiness reveals sin for what it truly is.
Similarly, Exodus 3 describes Moses encountering God in the burning bush. God tells him:
“Remove your sandals… for the place on which you are standing is holy ground.”
Even the ground becomes holy because of God’s presence.
Where God is, holiness defines the environment.
5. God’s Holiness Is Revealed in His Law
When God gives the Law to Israel, it reflects His holy nature.
Leviticus 19:2 says:
“You shall be holy, for I the Lord your God am holy.”
This is not arbitrary. God is not imposing an external standard.
He is revealing Himself as the standard.
The Law:
defines right and wrong
establishes boundaries
calls for purity and justice
But ultimately, it reflects the character of a holy God.
6. God’s Holiness Is Not Compromised by His Presence
One of the great tensions in Scripture is this: God is perfectly holy
humanity is sinful
So how can God dwell among His people?
The answer is not that God lowers His holiness.
Instead:
God provides a way for people to approach Him without compromising His holiness.
This is seen in:
the tabernacle
the priesthood
the sacrificial system
All of these establish:
boundaries
mediation
atonement
Holiness is not removed—it is honored and upheld.
7. The Holiness of God Revealed in Jesus Christ
Jesus does not diminish God’s holiness—He reveals it fully.
Throughout His life, we see:
perfect obedience
complete purity
unwavering righteousness
Hebrews 7:26 describes Him as:
“holy, innocent, undefiled, separated from sinners…”
Jesus does not merely teach holiness—He embodies it.
And yet, He does something astonishing:
He draws near to sinners.
This does not compromise holiness—it reveals a deeper truth:
God’s holiness is not only separating—it is also redemptive.
8. The Cross Upholds God’s Holiness
At the cross, we see one of the clearest displays of God’s holiness.
Sin cannot be ignored. It cannot be dismissed.
God’s holiness requires that sin be dealt with.
At the same time:
God loves
God desires to save
At the cross:
sin is judged
justice is satisfied
mercy is extended
God remains holy while making a way for sinners to be restored.
9. God’s People Are Called to Reflect His Holiness
Because God is holy, His people are called to reflect that holiness.
1 Peter 1:15–16 says:
“Like the Holy One who called you, be holy yourselves also in all your behavior…”
This does not mean becoming divine. It means:
living set apart
reflecting God’s character
turning away from sin
Holiness becomes the pattern of life in the Kingdom.
10. God’s Holiness Will Ultimately Transform All Things
The story of Scripture moves toward a final reality where:
sin is removed
corruption is eliminated
everything is made new
Revelation describes a world where: nothing unclean remains
God’s presence fills everything
God’s holiness will ultimately define all of creation.
The King and His Kingdom (Expanded Reflection)
1. The Kingdom Reflects the Holiness of the King
The Kingdom is not neutral—it reflects God’s nature.
Because God is holy:
His Kingdom is set apart, pure, and distinct.
2. The Kingdom Establishes a New Standard
The standard of the Kingdom is not:
culture
preference
human opinion
It is the character of God.
3. The Kingdom Confronts Sin
God’s holiness means:
sin cannot be ignored
sin must be addressed
The Kingdom brings:
conviction
repentance
transformation
4. The Kingdom Provides a Way Into Holiness
Through Christ:
sin is forgiven
hearts are changed
people are made new
Holiness is not only required—it is made possible.
5. The Kingdom Produces a Distinct People
God’s people are called to live differently.
Not for isolation, but for:
reflection
representation
witness
The Kingdom is visible through a people who reflect the holiness of God.
Key Scriptures
Isaiah 6:3
Revelation 4:8
Isaiah 40:25
Habakkuk 1:13
1 John 1:5
Exodus 3:5
Leviticus 19:2
Hebrews 7:26
1 Peter 1:15–16
Reflection Question
How does seeing God’s holiness more clearly change the way I view sin and my own life?
Obedience Question
What areas of my life need to be brought into alignment with God’s holiness?
Disciple-Making Question
How can I help others understand that holiness is not just a rule to follow, but a reflection of who God is?