28 Let the water … be gathered to one place. In the beginning the water covered the whole earth; now the water was to be restricted to an area to form the ocean. The picture is one of the dry land as an island with the sea surrounding it. Again the sovereignty of God is revealed. Whereas the pagans saw the sea as a force to be reckoned with, God controls the boundaries of the sea. And in the judgment at the flood he will blur the boundaries so that chaos returns.
29 When the waters are collected to one place, dry land emerges above the surface of the receding water.

In other versions

And God said, “Let the waters under the heavens be gathered together into one place, and let the dry land appear.” And it was so.

And God said, “Let the water under the sky be gathered to one place, and let dry ground appear.” And it was so.

Then God said, “Let the water under the sky be gathered into one place, and let the dry land appear.” And it was so.

Then God said, “Let the waters beneath the sky flow together into one place, so dry ground may appear.” And that is what happened.

And God said, “Let the waters under heaven be gathered to one place, and let the dry ground appear.” And it was so.

And God said, Let the waters under the heaven be gathered together unto one place, and let the dry land appear: and it was so.

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