Strong’s Greek
G42 — hagiosune
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἁγιωσύνη
hagiosune — pronounced hag-ee-o-soo'-nay
from 40; sacredness (i.e. properly, the quality):--holiness. see GREEK for 40
3 occurrences in the KJV.
Romans 1:4
And declared to be the Son of God with power, according to the spirit of holiness, by the resurrection from the dead:
2 Corinthians 7:1
Having therefore these promises, dearly beloved, let us cleanse ourselves from all filthiness of the flesh and spirit, perfecting holiness in the fear of God.
1 Thessalonians 3:13
To the end he may stablish your hearts unblameable in holiness before God, even our Father, at the coming of our Lord Jesus Christ with all his saints.