sn The phrase “the blast of your nostrils” is a bold anthropomorphic expression for the wind that came in and dried up the water.
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tn The word “heap” describes the walls of water. The waters, which are naturally fluid, stood up as though they were a heap, a mound of earth. Likewise, the flowing waters deep in the ocean solidified—as though they were turned to ice (U. Cassuto, Exodus, 175).