Genesis 1:6-10

And God said, “Let there be an expanse [of the sky] in the midst of the waters, and let it separate the waters [below the expanse] from the waters [above the expanse].” And God made the expanse [of sky] and separated the waters which were under the expanse from the waters which were above the expanse; and it was so [just as He commanded]. God called the expanse [of sky] heaven. And there was evening and there was morning, a second day. Then God said, “Let the waters below the heavens be gathered into one place [of standing, pooling together], and let the dry land appear”; and it was so. God called the dry land earth, and the gathering of the waters He called seas; and God saw that this was good (pleasing, useful) and He affirmed and sustained it.