Genesis 1:7

And God made the firmament,.... By a word speaking, commanding it into being, producing it out of the chaos, and spreading it in that vast space between the heaven of heavens and our earth (z),

And…

- IV. The Second Day 6. רקיע rāqı̂ya‛, “expanse;” στερέωμα stereōma, רקע rāqa‛, “spread out by beating, as leaf gold.” This expanse was not understood to be solid, as the fowl is said to fly on…

We have here an account of the second day's work, the creation of the firmament, in which observe, 1. The command of God concerning it: Let there be a firmament, an expansion, so the Hebrew word…

and it was so This formula is here out of place. See previous note.