Riblah

fruitful, an ancient town on the northern frontier of Palestine, 35 miles north-east of Baalbec, and 10 or 12 south of Lake Homs, on the eastern bank of the Orontes, in a wide and fertile plain. Here Nebuchadnezzar had his head-quarters in his campaign against Jerusalem, and here also Necho fixed his camp after he had routed Josiah's army at Megiddo (2Kings 23:29-35; 25:6; 25:20; 25:21; Jer 39:5 ; 52:10). It was on the great caravan road from Palestine to Carchemish, on the Euphrates. It is described (Num 34:11 ) as "on the eastern side of Ain." A place still called el Ain, i.e., "the fountain", is found in such a position about 10 miles distant. (See JERUSALEM)

EBD - Easton's Bible Dictionary