Adrien Segal  has written a short, but good article over at DG, on the holiness of God and the connection it has to our worship.  She writes, “the more we see of him, the more we’re reminded of how unholy we truly are. It’s not a comfortable thought. The way we think — even subconsciously — about God’s holiness will likely impact our worship on Sunday morning.”  See the full article here.