Origin and Application:
Cain was cursed by God for the murder of his brother, Abel. So he “went out from the Lord’s presence and lived in the land of Nod, east of Eden.” (Genesis 4:16)
Where is the land of Nod? Nod originally meant wandering. In ancient times, people believed that sleeping means wandering to another land. “Nod” gradually became a term that carries the meaning of sleep, as in “nod off”.