So the evening and the morning were the fourth day. God set them in the firmament of the heavens to give light on the earth, and to rule over the day and over the night, and to divide the light from the darkness. Then God made two great lights: the greater light to rule the day, and the lesser light to rule the night. Then God said, вЂњLet there be lights in the firmament of the heavens to divide the day from the night and let them be for signs and seasons, and for days and years and let them be for lights in the firmament of the heavens to give light on the earthвЂќ and it was so. So the evening and the morning were the third day. And the earth brought forth grass, the herb that yields seed according to its kind, and the tree that yields fruit, whose seed is in itself according to its kind. Then God said, вЂњLet the earth bring forth grass, the herb that yields seed, and the fruit tree that yields fruit according to its kind, whose seed is in itself, on the earthвЂќ and it was so. And God called the dry land Earth, and the gathering together of the waters He called Seas. Then God said, вЂњLet the waters under the heavens be gathered together into one place, and let the dry land appearвЂќ and it was so. So the evening and the morning were the second day. Then God said, вЂњLet there be a firmament in the midst of the waters, and let it divide the waters from the waters.вЂќ Thus God made the firmament, and divided the waters which were under the firmament from the waters which were above the firmament and it was so.

Biblical firmament