We have to account for a passage in Psalm 18 where the Bible tells us that God is in both 1) thick darkness and 2) has brightness before Him, at the same time and in the same context.
The Foundations of Heaven
Knowing how the firmament is constructed lets us interpret scripture and account for empirical observations of the cosmos, including 90% of the mass of the universe that mainstream science (SciPop) can't find.
Riding the Heavens
The idea that God or his agents may physically visit the Earth by riding on a piece of heaven may seem ridiculous. However it appears that a section of firmament is used like an elevator to travel between heaven and Earth.
The Brightness of the Firmament
The creation of gravity and formation of the firmament was to establish a place, heaven, where God would dwell in perpetual light because the firmament is bright like the sun, as we see from Daniel.
The Star of Bethlehem
As far-fetched as it may seem that the angelic host visited Bethlehem on the night of Jesus birth riding on a section of the brightly shining crystalline firmament, we shouldn't be surprised.
April 2nd
Knowing how the firmament is constructed lets us interpret scripture and account for empirical observations of the cosmos, including 90% of the mass of the universe that mainstream science (SciPop) can't find.