What is Holiness? The first instance of holy in the Bible is this:
And he said, Draw not nigh hither: put off thy shoes from off thy feet, for the place whereon thou standest is holy ground. (Exo 3:5)
And all the variations of Holy in the Old Testament derive from this Hebrew word.
H6942
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qa?dash
kaw-dash’
A primitive root; to [...]