CAIN
Cain was the firstborn of Adam and Eve, a farmer and the first murderer (Gen. 4:1). He committed his crime despite God’s warnings and despised divine mercy and correction (Gen. 4:6-9). Since the murder of his brother Abel he wandered and was separated from the people (Gen. 4:16).
Cain retired to the land of Nod, east of paradise (Heb. 11:4; 1 Jn. 3:12). He had sons, including Enoch (Gen. 4:16). God put a sign on Cain so that no one would kill him, but what this sign consisted of is unknown.