Genesis 1:6-8

Young's Literal Translation

⁶ And God saith, `Let an expanse be in the midst of the waters, and let it be separating between waters and waters.'

⁷ And 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.

⁸ And God calleth to the expanse `Heavens;' and there is an evening, and there is a morning -- day second.