What does Genesis 4:20 Mean?

Context Summary

God's first question to the soul is, "Adam, where art thou?" The next, "Where is thy brother?" We are our brother's keepers. All related to us, within our reach, or needing our help have a claim. We must not take advantage of them. Their well-being and our own are inseparable. God keeps an inventory of His saints, and will avenge them. Their blood will cry to God against those who have wronged them. There is only one cry in the world which is stronger-"the blood of Jesus." See Hebrews 12:24. It cries for mercy and pardon. A numerous family sprang from our first parents, and as these intermarried a large population began to people the early seat of human life. Cain founded a city, dedicated to all that ministered to sensuous enjoyment. This was "the way of Cain," brilliant but godless, away from the presence of the Lord. [source]

Chapter Summary: Genesis 4

¹  The birth, occupation, and offerings of Cain and Abel
⁸  Cain murders his brother Abel
¹¹  The curse of Cain
¹⁷  Has a son called Enoch, and builds a city, which he calls after his name
¹⁸  His descendants, with Lamech and his two wives
²⁵  The birth of Seth,
²⁶  and Enos