Is not the name of God holy?
Without a doubt, sacred in itself. Holy is His name (Luke 1:49).
How can it still be holy?
It can become holy in people, that is, His eternal holiness can appear in them.
How?
Firstly, when we, having the name of God in our thoughts and hearts, live as His holiness requires, and with such a life we glorify God; secondly, when, looking at our good life, others glorify God.
So let your light shine before people, so that they may see your good works and glorify your Father in heaven (Matthew 5:16).