He gathereth the waters of the sea together as an heap,.... Which was done on the third day of the creation, by means of which the dry land appeared, Gen 1:9; when the waters of the sea were piled up as an heap, and stood higher than the earth, as they now do; and which is a wonderful instance of the power and providence of God, to bound them, and preserve the earth from being overflowed by them, Job 38:9; he layeth up the depth in storehouses; that is, large quantities of water, for which he has his treasure houses, as for the wind, hail and snow, Psa 135:7; and these are the clouds of heaven above, and the fountains of the great deep below, which the Lord opens and stops at his pleasure; see Gen 7:11.