Questions

Genesis 4:17-22

Cain lay with his wife, and she beame pregnant and gave birth to Enoch.  Cain was then building a city, and he named it after his son Enoch.  To Enoch was born Irad, and Irad was the father of Mehujael, and Mehujael was the father of Methushael, and Methushael was the father of Lamech.  Lamech married two women, one named Adah and the other Zillah.  Adah gave birth to Jabal; he was the father of those who live in tents and raise livestock.  His brother's name was Jubal; he was the father of all who play the harp and flute.  Zillah also had a son, Tubal-Cain, who forged all kinds of tools out of bronze and iron.  Tubal-Cain's sister was Naamah.

In the place of profound conclusions, more questions arise instead.  If Cain was the first born of the first man and woman, then who did he marry, and when?  What does it mean "Cain was then building a city"?  How big is that city?  If there were even ten people in it, where did they come from?  If these people were around for a very long time, then it makes more sense.