God Is Holy

Exodus 15:11 Who is like you, majestic in holiness?

Isaiah 43:3 I am the Lord, your God, the Holy One of Israel, your Savior...

Stephen Charnock The Existence & Attributes of God adapted in Voices From The Past - Puritan Devotional Readings

http://www.stephencharnock.com/existence-and-attributes-of-god/

The holiness of God is his glory and crown. It is the blessedness of his nature. It renders him glorious in himself, and glorious to his creatures. 'Holy' is his greatest title of honour. He is pure and unmixed light, free from all blemish in his essence, nature, and operations. He cannot be deformed by any evil. The notion of God cannot be entertained without separating from him whatever is impure and staining. Though he is majestic, eternal, almighty, wise, immutable, merciful, and whatsoever other perfections may dignify so sovereign a being, yet if we conceive him destitute of this excellent perfection, and imagine him possessed with the least contagion of evil, we sully all those perfections we ascribed to him before. It is a contradiction for him to be God and to have any darkness mixed with his light. (1 John 1:5)

God swears by his holiness (Psalm 89:35). His holiness is a pledge for the assurance of his promises. Power is his hand, omniscience his eye, mercy his heart, eternity his duration, but holiness his beauty. It renders him lovely and gives beauty to all his attributes. Every action of his is free from all hints of evil. Holiness is the crown of all his attributes, the life of all his decrees, and the brightness of all his actions. Nothing is decreed by him and nothing is acted by him that is not consistent with the beauty of his holiness.

The nature of divine holiness is freedom from all evil. God is separate from every shade of evil. He acts according to the likeness of his own excellence and abhors everything contrary to it. There is no darkness in his understanding, and no spot in his will. His mind is possessed with all truth, and there is no deviation in his will from it. He loves all truth and goodness, and he hates all falsity and evil. He loves righteousness and has no pleasure in wickedness. He values purity in his creatures, and detests all impurity whether inward or outward. Holiness is the essential glory of his nature, and is as necessary as his being. He knows what is right, and must do what is just.

He is necessarily holy as he is necessarily God. He is without sin and without change. As he was God from eternity, so he was holy from eternity. From eternity he was gracious, merciful, just, and holy in his own nature, even if there were no creatures created to receive it. If God had not created the world, he still had in his own nature the power to be able to create the world. If there never existed anything but God, he owned in himself omniscience, and would know everything that was within the scope and compass of his infinite power. He was pure in his own nature though he never had brought forth any rational creature to whom he could manifest his purity.

Holiness is not only an act of his will, but is in his very nature. He can by no means be unholy for it is against his nature to be so.

A.W. Tozer The Knowledge of the Holy “The Holiness of God”

Until we have seen ourselves as God sees us, we are not likely to be much disturbed over conditions around us as long as they do not get so far out of hand as to threaten our comfortable way of life. We have learned to live with unholiness and have come to look upon it as the natural and expected thing.