New Defender's Study Bible Notes
1:7 above the firmament. The “waters which were above the firmament” are clearly not the clouds or the vapor which now float in the atmosphere. The Hebrew word al, definitely requires the meaning “above.” Furthermore, the absence of rain (Genesis 2:5) and the rainbow (Genesis 9:13) is not only explained but required by a vapor canopy, not by an atmosphere like that of the present. Furthermore, these waters extending far out into space eventually condensed and fell back to the earth at the time of the Great Deluge, providing the source of the worldwide rainstorm that contributed to the Flood. Although the exact extent and structure of this canopy is still being researched by computer simulations, there are no insuperable scientific problems with the concept.