A plague on a house was apparently a supernatural occurrence. Rashi cites the Midrash that says when the Canaanites saw that their end was near, they hid their valuables in the walls of their homes. Hashem placed affliction upon a house so that when the house was to be dismantled, the Jewish owner would find the hidden treasures. Consequently, the plague was a blessing in disguise. We may question the reason for a seven-day quarantine on the house. If the sole purpose of the quarantine was to expose the treasure, the mere indication of a plague should signal the “demolition…
