Genesis 4

1 Adam slept with Eve his wife. She conceived and had Cain. She said, "I’ve gotten a man, with God’s help!"

25,26 Adam slept with his wife again. She had a son whom she named Seth. She said, "God has given me another child in place of Abel whom Cain killed." And then Seth had a son whom he named Enosh.

That’s when men and women began praying and worshiping in the name of God.