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9 And God said, Let the waters under the heaven be gathered together unto one place, and let the dry land appear: and it was so.
'To open,' as in Revelation 9, signifies communication and conjunction.
(Ссылки: Apocalypse Explained 537)
18 It will happen that he who flees from the noise of the fear will fall into the pit; and he who comes up out of the midst of the pit will be taken in the snare; for the windows on high are opened, and the foundations of the earth tremble.