Genesis 4:17
“And Cain knew his wife; and she conceived, and bare Enoch: and he builded a city, and called the name of the city, after the name of his son, Enoch.”
KJV
Read in Genesis 4Meaning
Cain fathers Enoch and is associated with building a city named for his son. Human settlement develops outside Eden.
Read carefully
The verse does not say that city-building itself is sinful. It reports cultural development within a genealogy that also contains moral disorder.
Reflection
Human beings can build durable institutions and culture even in a world marked by alienation; technological progress and moral progress are not identical.