'Holy' in the Bible

Blow the trumpet in Zion [warning of impending judgment],Sound an alarm on My holy mountain [Zion]!Let all the inhabitants of the land tremble and shudder in fear,For the [judgment] day of the Lord is coming;It is close at hand,

Then you will know and understand fully that I am the Lord your God,Dwelling in Zion, My holy mountain.Then Jerusalem will be holy,And strangers [who do not belong] will no longer pass through it.