Genesis 4:1
Cain and Abel
1 Now Adam knew Eve his wife, and she conceived and bore Cain, saying, “I have gotten1 a man with the help of the Lord.”
Genesis 4:17
17 Cain knew his wife, and she conceived and bore Enoch. When he built a city, he called the name of the city after the name of his son, Enoch.
Genesis 4:25
25 And Adam knew his wife again, and she bore a son and called his name Seth, for she said, “God has appointed1 for me another offspring instead of Abel, for Cain killed him.”