Genesis 1 6
And God said, “Let there be a vault between the waters to separate water from water.”
Compare with other 3 random translations
YLT Genesis 1:6And God saith, 'Let an expanse be in the midst of the waters, and let it be separating between waters and waters.'
NAS Genesis 1:6Then God said, “Let there be an expanse in the midst of the waters, and let it separate the waters from the waters.”
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.