You may be uncomfortable with the idea that God uses a section of the firmament as a movable platform like a giant cosmic surfboard. We get it, this is a deep end and we went off it. It's what we do.
A Pavement of Sapphire Stone
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.
December 26th
The enormous crowd may be more familiar to us as a great multitude, and the terrible persecution is where we find the phrase "great tribulation." They stand before the throne on the sea of glass.
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.
September 24th
The last physical phenomena of world-wide, or region-wide, significance in the recent epoch is the most famous one of all, the star of Bethlehem. It has a direct connection to our doctrine of the firmament.