What is holiness?

Words of Charles Marsh, taken from the book, The Sacredness of Questioning Everything by David Dark.

If only holiness were measured by the volume of our incessant chatter, we would be universally praised as the most holy nation on earth. But in our fretful, theatrical piety, we have come to mistake noisiness for holiness, and we have presumed to know, with a clarity and certitude that not even the angels dared claim, the divine will for the world. We have organized our needs with the confidence that God is on our side, now and always, whether we feed the poor or corral them into ghettos.

To a nation filled with intense religious fervor, the Hebrew prophet Amos said: You are not the holy people you imagine yourselves to be. Though the land is filled with festivals and assemblies, with songs and melodies, and with so much pious talk, these are not the sounds and sights that are pleasing to the Lord. "Take away from me the noise of your congregations," Amos says, "you who have turned justice into poison."