And Adam knew Eve his wife; and she conceived, and bare Cain, and said, I have gotten a man from the LORD.
After the expulsion from Eden, Eve gives birth to the first child.
Genesis 4:1
King James Version (public domain)
Traditionally attributed to Moses · c. 13th century BC · The Pentateuch — Genesis, Exodus, Leviticus, Numbers, and Deuteronomy — is traditionally attributed to him
Context
1And Adam knew Eve his wife; and she conceived, and bare Cain, and said, I have gotten a man from the LORD.
2And she again bare his brother Abel. And Abel was a keeper of sheep, but Cain was a tiller of the ground.
3And in process of time it came to pass, that Cain brought of the fruit of the ground an offering unto the LORD.