Exodus 15:8

sn The phrase “the blast of your nostrils” is a bold anthropomorphic expression for the wind that came in and dried up the water.

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).