What the Bible says about Harpax
(From Forerunner Commentary)

1 Corinthians 5:10 An extortioner indicates a robber who steals by violence; the Greek word, harpax, means "to obtain by violence, threat, oppression, or abuse of authority." It is an adjective that literally describes a grappling iron used in warfare, and so it means "grasping that to which one has no right." It is also translated as "ravening" in Scripture. John W. Ritenbaugh The Eighth Commandment Related Topics: Abuse of Authority | Extortion | Grasping | Oppression | Stealing | Thief Imagery | Violence