Why holiness stands out
When Isaiah saw the Lord in the temple, the seraphim did not repeat that God was loving, mighty, or merciful three times. They proclaimed his holiness three times (Isaiah 6:3). John describes the living creatures around God’s throne offering the same continual praise (Revelation 4:8). That repeated pattern gives holiness a special prominence in Scripture.
To say God is holy means he is utterly pure and wholly set apart from everything he has made. He is not simply the best version of a human being. No creature can be compared with him. His holiness includes both his moral perfection and his breathtaking majesty.
And one cried unto another, and said, Holy, holy, holy, is the Lord of hosts: the whole earth is full of his glory.
God is not made of separate parts
Still, it would be misleading to choose holiness and leave God’s other attributes behind. Scripture says God is love (1 John 4:8), calls all his ways righteous (Psalm 145:17), and shows him to Moses as merciful, gracious, patient, truthful, and just (Exodus 34:6-7). These are not competing features of his personality.
God’s love is holy love. His justice is holy justice. His mercy is holy mercy. Because he is perfectly holy, he never loves in a selfish or careless way, and he never judges with cruelty or error. The qualities we see in God always belong together.
His glory reveals who he is
The Bible often connects God’s holiness with his glory. In Isaiah’s vision, the whole earth is described as full of his glory (Isaiah 6:3). God’s glory is the visible weight and splendour of who he is, the beauty of all his perfections made known.
This helps with the question. Rather than asking which trait wins, it may be better to ask what God is like in all his fullness. He is the one whose character never changes (James 1:17), whose righteousness is always right, and whose love is entirely faithful. There is nothing dark, mixed, or unstable in him.
And the four beasts had each of them six wings about him; and they were full of eyes within: and they rest not day and night, saying, Holy, holy, holy, Lord God Almighty, which was, and is, and is to come.
What this means for us
God’s holiness can feel daunting, especially when we recognise our own sin. But the holy God is also the God who made a way for people to draw near through Jesus. Christ suffered for sins in order to bring us to God (1 Peter 3:18). His rescue does not soften God’s holiness. It shows how seriously God takes both sin and mercy.
So, holiness is the attribute Scripture highlights most distinctly, but it should not be isolated from the rest of God’s character. Read passages such as Exodus 34:6-7 slowly and notice the whole portrait. The God who is perfectly holy is also gracious, truthful, righteous, and full of love.