Adul’lam (justice of the people), Apocr. Odollam, a city of Judah in the lowland of the Shefelah, Josh. 15:35; the seat of a Canaanite king, Josh. 12:15, and evidently a place of great antiquity. Gen. 38:1, 12, 20. Fortified by Rehoboam, 2 Chron. 11:7, it was one of the towns reoccupied by the Jews after their return from Babylon, Neh. 11:30, and still a city in the time of the Maccabees. 2 Macc. 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 Sam. 22:1; 2 Sam. 23:13; 1 Chron. 11:15.