Long Days Indeed

Tidal locking is responsible for long days.  Genesis' account of epoch-long daylight may be accounted for by Tidal locking.

Luna is tidally-locked with respect to earth.  We see one face always - if a large enough mass were to be injected into a lunar orbit Tidal locking would be broken.  Night and day.

Venus is tidally-locked.  One face always sees the sun.  This causes superheating and structural deformation which results in outgassing and mass atmosphere formation - perfect food for spore at transfer layer to begin Terraforming.  Genesis.  Earth 2.0 or more...

In the Biblical account of creation we were likely in a tidally-locked position without Luna.  Luna, perhaps, is the transport for the survivors of Old Earth, also known as Mars.  These are the Watchers of Enoch.  The aliens Tesla spoke with.

Long days indeed...