Genesis 1 6
God said, “Let there be an expanse in the middle of the waters to divide the waters.”
Compare with other 3 random translations
LSV Genesis 1:6And God says, “Let an expanse be in the midst of the waters, and let it be separating between waters and waters.”
NIV Genesis 1:6And God said, “Let there be a vault between the waters to separate water from water.”
GNV Genesis 1:6Againe God said, Let there be a firmament in the mids of the waters: and let it separate the waters from the waters.