Genesis 1 7
And God made the firmament [the expanse] and separated the waters which were under the expanse from the waters which were above the expanse. And it was so.
Compare with other 3 random translations
YLT Genesis 1:7And God maketh the expanse, and it separateth between the waters which are under the expanse, and the waters which are above the expanse: and it is so.
NIV Genesis 1:7So God made the vault and separated the water under the vault from the water above it. And it was so.
NCV Genesis 1:7So God made the air and placed some of the water above the air and some below it.