Verse 6
KJV: And God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters.
ESV: And God said, “Let there be an expanse in the midst of the waters, and let it separate the waters from the waters.”
NIV: And God said, “Let there be a vault between the waters to separate water from water.”
AMP: And God said, Let there be a firmament [the expanse of the sky] in the midst of the waters, and let it separate the waters [below] from the waters [above].