Dave awoke one morning in a mild panic, remembering he was scheduled to play music for chapel at a local elementary school, and he'd meant to write a new song for the children. He'd been thinking about Isaiah's prophecy of the soldiers repurposing their weapons as agricultural implements, so he quickly wrote a song starting with "Where did they get the metal for this new plow?" When he arrived at the chapel, there was a banner on the wall: They shall beat their swords into plowshares and their spears into pruning hooks."