Origen called the firmament “without doubt firm and solid” (First Homily on Genesis, FC 71). Ambrose, commenting on Genesis 1:6, said, “the specific solidity of this exterior firmament is meant” (Hexameron, FC 42.60). And Saint Augustine said the word firmament was used “to indicate not that it is motionless but that it is solid and that it constitutes an impassible boundary between the waters above and the waters below” (The Literal Meaning of Genesis, ACW 41.1.61).
Gen 6 And God said: Let there be a firmament made amidst the waters: and let it divide the waters from the waters. 7And God made a firmament, and divided the waters that were under the firmament, from those that were above the firmament, and it was so.
Gen 14 And God said: Let there be lights made in the firmament of heaven, to divide the day and the night, and let them be for signs, and for seasons, and for days and years: 15 To shine in the firmament of heaven, and to give light upon the earth. And it was so done. 16And God made two great lights: a greater light to rule the day; and a lesser light to rule the night: and the stars. 17And he set them in the firmament of heaven to shine upon the earth.
Isaiah 40 22 It is he that sitteth upon the circle of the earth, and the inhabitants thereof are as grasshoppers; that stretcheth out the heavens as a curtain, and spreadeth them out as a tent to dwell in:
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Tradition teaches there is a firmament. Solid dome, like a tent. Water is above the dome and below the dome. Earth below the dome. Sun/moon/stars inside the dome. --Scripture, Origen, Ambrose, Augustine
The firmament structure discussed by the Fathers of the Church and in scripture must be awfully ginormous to house the moon 250,000 miles away, the sun 93,000,000 miles away and stars even further. Of course, this dome can't be stretched out like a tent as scripture says, but would have to be a hard ball shaped structure surrounding the earth ball. With a bunch of water beyond that? Oh boy. What imaginations the globalists have.