Riblah (rĭbˈlə) [key]. 1 In the Bible, unidentified boundary landmark, N ancient Palestine. 2 City of ancient Syria, used by the Egyptians and later by the Neo-Babylonians as a headquarters in the west. It was on the Orontes at the foot of Lebanon and E of Tripoli. Situated at the beginning of the valley between Lebanon and Anti-Lebanon, it guarded the entrance to Syria and Palestine and was of strategic importance. It is mentioned several times in the Bible; it is called Diblath in the Book of Ezekiel.