In the late 17th century, William of Orange intentionally flooded much of his nation’s land. The Dutch monarch resorted to such a drastic measure in an attempt to drive out the invading Spaniards. It didn’t work, and a vast swath of prime farmland was lost to the sea. “Desperate times call for desperate measures,” they say.

In Isaiah’s day, Jerusalem turned to desperate measures when the Assyrian army threatened them. Creating a water storage system to endure the siege, the people also tore down houses to shore up the city walls. Such tactics may have been prudent, but they neglected the…