This chapter tells the story of the progression of humanity, the increase of sin and, in it final sentence, the development of worship. There are interesting snippets of cultural information (20-22). There may be progress in the horizontal dimension - agriculture, music, industry, but history reveals, again and again, that all is not well in our relationship with God. Sin was on the increase (1-16). Things were getting out of control. Could they be turned around again? A strongly positive answer to this question is not spelled out in detail in this chapter. There is, however, a hint of God at the end of the chapter. He is still at work, calling sinners to worship Him, and people are beginning to respond. This is the note on which the chapter ends - "At that time people began to worship the Lord" (26). At the end of a chapter which is, at best, informative - the progression of culture, and, at worst, depressing - the increase of sin, this is the ray of hope, the word of encouragement.