Doctrine instructs the mind. Instructions guide the hands. But music gets into the heart, the soul. Kant calls music “the quickening art” because it restores life to us. It makes us who were were supposed to be.
As God prepares us for advent, he uses a hymnbook to do it. Psalm 85 is meant to be sung, so that the longing for righteousness and peace to kiss can get into your soul.
The King is coming.