Genesis 1:8

8. God called the firmament Heaven Rather, called the expanse Heavens . Here the writer defines the meaning of the word “heavens,” which he had used in the first verse . And he further represents the luminaries as set in the expanse of the heavens, (Genesis 1:14-17,) and the winged fowls as flying upon its face, (Genesis 1:20,) and hence called the fowl of the heavens . Genesis 1:26; Genesis 1:28; Genesis 1:30. By a most natural process the word would become associated with things above, and be used to denote the dwellingplace of God . Hence, too, the notion of many heavens . Compare 2 Corinthians 12:3.