How Deep was Noah’s Flood?

Cutaway of planet Earth showing the relative depth of Noah's flood

The waters prevailed fifteen cubits upward, and the mountains were covered.

(Genesis 7:20) NKJV

Mount Everest formed AFTER Noah’s flood, and there was enough water in the great deep to flood the Earth 1,200 km deep. 15 cubits was when the crew of the ark stopped taking soundings.

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The Pillars of the Earth and it’s Original Radius

a comparison of the size of the planet earth on the third day vs. present day

He raiseth up the poor out of the dust, and lifteth up the beggar from the dunghill, to set them among princes, and to make them inherit the throne of glory: for the pillars of the earth are the LORD’S, and he hath set the world upon them.

(1 Samuel 2:8) KJV

There are some clues for us to be able to figure out the Earth’s former size. This comes from the pillars of the Earth which are part of its internal structure.

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The Volume of Earth’s Mantle

Cutaway of planet earth showing hell at the center

For a fire is kindled in My anger, And shall burn to the lowest hell; It shall consume the earth with her increase, And set on fire the foundations of the mountains.

(Deuteronomy 32:22) NKJV

It’s very useful to know the volume of material in the Earth’s crust and mantle, but before we move on it’s also worthwhile to note that the Earth’s crust and mantle have several Biblical synonyms.

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The thing that hath been, it is that which shall be; and that which is done is that which shall be done: and there is no new thing under the sun. Is there any thing whereof it may be said, See, this is new? it hath been already of old time, which was before us.

(Ecclesiastes 1:9-10) KJV

Welcome to the 19th Century! It’s ironic that, even today, people will presume to disprove God by cobbling together some math based on Uniformitarianism ideals.

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Noah’s Math

And the waters prevailed exceedingly on the earth, and all the high hills under the whole heaven were covered. The waters prevailed fifteen cubits upward, and the mountains were covered.

(Genesis 7:19-20) NKJV

This post is a response to, and a rebuttal of: How much water would be needed for Noah’s Flood? by Andrew L. Seidel. He posted the link in a Twitter thread discussing our post do I still need to ask for forgiveness?

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