Genesis 7, verses 17 to 24, and all flesh died that moved upon the earth

 

Genesis 7:17 ¶  And the flood was forty days upon the earth; and the waters increased, and bare up the ark, and it was lift up above the earth. 18  And the waters prevailed, and were increased greatly upon the earth; and the ark went upon the face of the waters. 19  And the waters prevailed exceedingly upon the earth; and all the high hills, that were under the whole heaven, were covered. 20  Fifteen cubits upward did the waters prevail; and the mountains were covered.

It is easy here to surmise that the upthrust of the great mountain ranges was a consequence of the violent cataclysm of the Flood. Rapid deformation of the earth’s surface as the fountains of the great deep were broken up took place rather quickly. When you consider that fifteen cubits would be in a range of 22 to 30 feet and we’ve already seen the theory that the water under the earth’s surface could cover the continents in 600 feet of water, it makes sense that this statement refers to there being upwards of 30 feet of water over the highest mountain or hill which would not have been in the range of what we think of regarding today’s mountains. It was an earth, before the Flood, consisting of one giant landmass and an ocean, with the only mountains being high hills and a worldwide tropical environment containing many times the biomass of plant and animal life we have on our beautiful but degraded earth.

Some very interesting comments about this theory regarding the evidence of recent mountain change uplift can be found if one is willing to consider it.[1]

Genesis 7:21 ¶  And all flesh died that moved upon the earth, both of fowl, and of cattle, and of beast, and of every creeping thing that creepeth upon the earth, and every man: 22  All in whose nostrils was the breath of life, of all that was in the dry land, died. 23  And every living substance was destroyed which was upon the face of the ground, both man, and cattle, and the creeping things, and the fowl of the heaven; and they were destroyed from the earth: and Noah only remained alive, and they that were with him in the ark. 24  And the waters prevailed upon the earth an hundred and fifty days.

The context here shows that the definition of All in whose nostrils was the breath of life, of all that was in the dry land, died is all flesh and every living substance referring to things that breathed air on dry land. 

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[1] Roger Gallop, “Catastrophic Worldwide Flood: Massive Igneous Mountain Ranges,” CreationSciencetoday.com, http://creationsciencetoday.com/11-Massive_Igneous_Mountain_Ranges.html (accessed 7.31.2016).