The Bible

Genesis 1:6

⁶ And God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters.

Commentary

Open

'To open,' as in Revelation 9, signifies communication and conjunction.

(References: Apocalypse Explained 537)

The Bible

Psalms 115:16

¹⁶ The heaven, even the heavens, are the LORD's: but the earth hath he given to the children of men.