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
God and the heavenly host may visit the Earth on a section of the firmament, described in Exodus 24:10 as a paved work of sapphire stone. This gives us a Biblical basis for the Silver Surfer.
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.
December 25th
It's Christmas Day when we look to Jesus and the promises of what is coming for those who believe. We ponder heavenly things including what the sea of glass may really be.
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.