God is revealed as perfect interior holiness.
"Holy, holy, holy is the Lord of hosts!" they (the
Seraphim) cried one to the other.
We are called to that same holiness.
"Speak to the whole Israelite community and tell them:
Be holy, for I, the Lord your God, am holy."
1 Peter 1:15-16
As he who called you is holy, be holy yourselves in
aspect of your conduct, for it is written,
"Be holy because I (am) holy."