In my preparation I came across this helpful comment by R. A. Finlayson:
The great implication of holiness in the personal life is sin-consciousness, and where there is little sin-consciousness there is little conception of the holiness of God. The holiness of God becomes significant to us only when it reveals our own sinfulness in relation to God.
Sin is a wilful act of trespass on a holy God, and penitence results in self-loathing before God and a desire, not to escape from the holiness of God, but to accept it, to open up the life to its scrutiny, and receive its just judgment. Thus comes the repentance that leads, not to despair and death, but to hope and life.
If God is holy, there is still hope that the sinner may be holy; if a holy God is dealing with our sin we shall be holy.