'Holiness' in the Bible

And when he had consulted with the people, he appointed singers unto the LORD, and that should praise the beauty of holiness, as they went out before the army, and to say, Praise the LORD; for his mercy endureth for ever.

After this, the priests arose, blessed the people, and their voices were heard in prayer all the way to heaven, where God resides in holiness.

And to the genealogy of all their little ones, their wives, and their sons, and their daughters, through all the congregation: for in their set office they sanctified themselves in holiness: