Genesis 3:17 ASV, Genesis 3:18 ASV and Genesis 3:19 ASV

Genesis 3:17-19 - as I was reading this I thought of the terrain in East Of Eden by John Steinbeck. I also thought of the Grapes Of Wrath. (Oklahoma Dust Bowl)

Genesis 4:26 - men and women began praying and worshiping in the name of God.
-what did they do before this?