From: Heaven on Earth
Cain and Abel follow in their parents’ footsteps. Cain subdues the land (he’s a farmer), and Abel takes dominion over the animals (he’s a shepherd). Although they live east of Eden without access to the Tree of Life, God does not abandon them. Rather, he continues to speak with them. He desires to have a relationship with humans. The brothers can still respond to the Voice, (Genesis 4). But they and all future generations after them will come to realize that God is not the only one speaking to them. Other voices now seek to influence them and move them away from serving God and fulfilling his mandate to rule the world under his auspices.
When Cain murders Abel in a jealous rage, God curses the ground so that it will not yield enough resources to sustain his life, (Genesis 4:11-12). Cain departs from God’s presence and builds a city, which he names Enoch, (vv. 16-17). There is little evidence from this point onward that Cain or his descendants ever again hear God’s voice or seek to know him.
After Abel’s untimely death, Adam and Eve have another son, Seth, who begins a Godly progeny. As civilization grows and advances, two distinct lines spring from the one family. As civilization grows and advances, two distinct lines spring from one family. The first rules its affairs without divine assistance, but the other calls on the name of the Lord, (Genesis 4:25-26). Humankind is thus divided between those who rebel against God’s voice and those who obey.