This is the symbolic name of Isaiah's son, appearing in Isaiah 7:3 where God commands the prophet to take this son when confronting King Ahaz. The name means 'a remnant shall return,' embodying Isaiah's theology of judgment and hope—though most will be destroyed, a faithful remnant will survive and return. The child becomes a walking prophecy, his very name proclaiming both threat and promise every time it's spoken. Such naming makes theology incarnate.