
Dan was the firstborn of Bilhah, Rachel's maidservant, and the fifth son of Jacob. His name came from Rachel's cry "God has judged me (dannani)" — a judge-name for the son through whom Rachel first gained standing in the household.
Jacob's blessing (Genesis 49:16–18) is brief but precise: "Dan shall judge his people as one of the tribes of Israel. Dan shall be a serpent in the way, a viper by the path, that bites the horse's heels." The serpent imagery — striking from ambush — fits the most famous Danite in the biblical record: Samson. His career as a judge was solitary guerrilla action: burning the Philistines' grain with foxes tied tail-to-tail, slaughtering a thousand with the jawbone of a donkey, tearing the gates of Gaza from their posts (Judges 13–16).
The tribe of Dan's initial territory, assigned southwest of Ephraim near Joppa, was small and contested. Unable to hold it, a scouting party of Danites found the city of Laish in the far north, peaceful and prosperous, and the tribe relocated there, renaming it Dan (Judges 18). On the way they stole the household idols of a man named Micah and recruited his Levite as their priest. The chapter ends noting Jonathan son of Gershom served as priest to Dan "until the day of the captivity of the land" — institutionalized idolatry that left a permanent mark. Jeroboam later placed one of his two golden calves at Dan (1 Kings 12:29). The theological consequence appears in Revelation 7:4–8, where the 144,000 sealed are listed — and Dan is absent, replaced by Manasseh.
"Dan shall judge his people as one of the tribes of Israel. Dan shall be a serpent in the way, a viper by the path, that bites the horse's heels so that his rider falls backward. I wait for your salvation, O Yah." (Genesis 49:16–18)