“Adullam” means justice of the people

Adullam: Apocr. ODOLLAM, a city of Judah int he lowland of the Shefelah, (Joshua 15:35) the seat of a Canaanite king, (Joshua 12:15) and evidently a place of great antiquity. (Genesis 38:1,12,20) Fortified by Rehoboam, (2 Chronicles 11:7) it was one of the towns reoccupied by the Jews after their return from Babylon, (Nehemiah 11:30) and still a city in the time of the Macabees. 2Ma 12:38 Adullam was probably near Deir Dubban , five or six miles north of Eleutheropolis. The limestone cliffs of the whole of that locality are pierced with extensive excavations, some one of which is doubtless the "cave of Adullam," the refuge of David. (1 Samuel 22:1; 2 Samuel 23:13; 1 Chronicles 11:15)