Genesis 1:8
“And God called the firmament Heaven. And the evening and the morning were the second day.”
KJV
Read in Genesis 1Meaning
The expanse receives its name and place within the ordered creation. Naming makes explicit that this realm belongs to the structure God is establishing.
Read carefully
The word translated Heaven can refer to the sky or heavens depending on context. The immediate scene concerns the expanse created between the waters, not a complete doctrine of the afterlife.
Reflection
The verse reinforces a recurring theme of Genesis 1: created realms have identities and functions that are not self-assigned but received within God's ordering work.