This is the central conflict of history. It is the conflict between the seed of the serpent and the seed of the woman, between the city of self-glorification and the city of selfless worship. And as we continue our walk through the Word, we will see this tale of two cities play out on every page, culminating in the final contrast between the great city, Babylon, and the New Jerusalem, the holy city of God.

Loved ones, we left the last chapter with a grim picture. Cain, the first murderer, is condemned to be a fugitive and a wanderer on the earth, cursed from the very ground his brother’s blood had stained. Yet, he is also marked by God’s strange mercy, preserved from immediate vengeance. The question that hangs in the air is, what becomes of this man and his descendants? What kind of world will be built by a man who answered God’s call with a defiant sneer, “Am I my brother’s keeper?”

This next passage provides the answer. It is a tale of two humanities, two lineages that trace their origins back to Adam but choose radically different paths. On the one hand, we will see the line of Cain, which builds a civilization of impressive cultural achievement, technological prowess, and arrogant self-sufficiency—a city of man. On the other, we see the line of Seth, a fragile, replacement seed through whom humanity begins not to build its own name, but to call upon the name of the Lord. This is the genesis of the City of God.

Genesis 4:17-26 establishes the fundamental conflict of human history by contrasting the line of Cain—which builds a godless civilization defined by self-glorification, technological pride, and violent arrogance—with the line of Seth, a godly remnant that finds its identity not in human achievement but in humbly calling upon the name of the Lord.

Verses 17-24: The City of Man

A Civilization of Wanderers

The first thing the wanderer Cain does is build a city. Here, the perspicuity of Scripture is on full display. When you read the text carefully, you see a profound act of rebellion. A man cursed to wander the earth defiantly sinks roots into the ground and builds a fortress of stability for himself. The text tells us, “When he built a city, he called the name of the city after the name of his son, Enoch.” This is an attempt to create a man-made Eden, a kingdom of his own making where he can find security and legacy apart from God. This is the archetypal act of the City of Man: to establish its own name and its own salvation through its own efforts.

The Fruits of a Godless Culture

Cain’s line flourishes. His descendants become pioneers of culture and technology. Jabal is called “the father of those who dwell in tents and have livestock.” His brother Jubal is “the father of all those who play the lyre and pipe.” Their half-brother Tubal-Cain becomes “the forger of all instruments of bronze and iron”—tools for building, but also weapons for war.

We must be clear: animal husbandry, music, and technology are not inherently evil. They are good gifts, expressions of the creativity God instilled in humanity. The tragedy here is not what they built, but the foundation upon which they built it. This is a civilization that develops its powers entirely for its own glory, without any reference to the Giver of those gifts. It is a portrait of a humanity that is culturally advanced but spiritually dead.

Read More