God’s mighty word of power is central here. The waters had to recede quickly. They had to obey God’s thunderous voice immediately (see also Job 38:8–11; Jeremiah 5:22).
It is fitting to think here of Psalm 33:9, where we read, “For he spoke, and it came to be; he commanded, and it stood firm.”
7 At your rebuke they fled; at the sound of your thunder they took to flight.