Commentators explain that the name "Seth" means "appointed," "placed," or "settled." After the murder of righteous Abel and the exile of Cain, God provided Seth as a divinely appointed substitute. This demonstrates that human sin cannot ultimately thwart God's redemptive plan. While Cain, the head of the apostate line, became a wanderer, Seth's line is presented as the "settled" foundation from which the true church would grow.