The Biblical Earth: An Illustrative Scriptural Look
The use of “firmament” (Hebrew raquia) sometimes signifies a hard, domed shell covering a flat earth.
According to the Harper’s Bible Dictionary:
“The ancient Hebrews imagined the world as flat and round, covered by the great solid dome of the firmament which was held up by mountain pillars. The blue color of the sky was attributed to the chaotic waters that the firmament separated from the earth. The earth was thus surrounded by waters above and below. The firmament was thought to be substantial; it had pillars and foundations. When the windows of it were opened, rain fell. The sun, moon, and stars moved across or were fixed in the firmament. It was also the abode of the birds. Within the earth lay Sheol, the realm of the dead.”
And one of those four went to that white bull and instructed him in a secret, without his being terrified: he was born a bull and became a man, and built for himself a great vessel and dwelt thereon; and three bulls dwelt with him in that vessel and they were covered in.
And again I raised mine eyes towards heaven and saw a lofty roof, with seven water torrents thereon, and those torrents flowed with much water into an enclosure.
And I saw again, and behold fountains were opened on the surface of that great enclosure, and that water began to swell and rise upon the surface, and I saw that enclosure till all its surface was covered with water.
And the water, the darkness, and mist increased upon it; and as I looked at the height of that water, that water had risen above the height of that enclosure, and was streaming over that enclosure, and it stood upon the earth.
And all the cattle of that enclosure were gathered together until I saw how they sank and were swallowed up and perished in that water.