Then should I yet have comfort; yes, I would harden myself in sorrow: let him not spare…
This is a title too big for anyone but God. All holiness is in God. God is so holy that properly He only is holy. God is called the Holy One in three respects: Because He is all holy in Himself; because we receive all holiness from Him; and because we are to serve Him in holiness and righteousness all our days. God is holy in His nature. His essence is purity. He is holy in His Word. He is holy in His works. These three put together lift up the glory of God in this title, "The Holy One." Or we may consider God, the Holy One,
1. Radically and fundamentally, because the Divine nature is the root and original, the spring of all holiness and purity.
2. God is the Holy One by way of example and pattern, or in regard of the rule and measure of holiness.
3. By way of motive. He is, as the rule of holiness, so likewise the reason of our holiness.
4. God is the Holy One effectively, because He works, conveys, and propagates all holiness to and in the creature. Man can no more make himself or another holy, than he can redeem another or himself.
5. He is called the Holy One by way of eminency, or super-excellence, because His holiness is infinitely beyond all the holiness of men and angels. Holiness in angels is a quality; holiness in God is His essence. God is above men and angels, because He is absolutely perfect in holiness. And God is ever equally holy, ever in the same degree and frame of holiness. The holiness of man consists in his conformity to the holiness of God. There is a two-fold conformity: a conformity to the nature of God, and a conformity to the will of God, or to that which God wills. These make up the total holiness of the creature.
Parallel VersesKJV: Then should I yet have comfort; yea, I would harden myself in sorrow: let him not spare; for I have not concealed the words of the Holy One.