Cain was the first son of Adam and Eve in the Book of Genesis. Eve saw his birth as being with the help of God, and he became a tiller of the ground, while his younger brother Abel became a keeper of sheep. While Abel pleased God with an offering of his flock, Cain failed to please God with his fruit, and a jealous Cain lured his brother Abel to the field and killed him. God proceeded to curse Cain by making him a fugitive and a wanderer on the Earth, and he was also given a mark on his head to protect him from the vengance of other humans. He then "dwelt in the land of Nod" (meaning "to wander"). He married a woman with whom he had a son named Enoch; whose name he also gave to a city he later built; a grandson named Irad, a great-grandson named Mehujael, a great-great-grandson named Methushael, a great-great-great-grandson named Lamech and 4 great-great-great-great-grandchildren named Jabal, Jubal, Tubal-cain and Naamah.