Enrogel
Fausset's Bible Dictionary [1]
("fountain of feet".) So called because fullers trod their cloth with the feet here. On the border between Benjamin and Judah ( Joshua 15:7; Joshua 18:16). At a lower level than Jerusalem, as "descended" implies. At the southern extremity of the valley of Hinnom near its junction with the valley of Jehoshaphat. Here Jonathan and Ahimaaz remained to receive intelligence for David from within the walls ( 2 Samuel 17:17). Here also by the stone Zoheleth Adonijah held his feast preparatory to claiming the throne ( 1 Kings 1:9). The site is by many thought to be that now called "the well of Nehemiah," and by the natives" the well of Job," Bir-eyub. The spot is one of the most fertile round Jerusalem. The well is 125 ft. deep, and in winter usually full; it is walled up and arched above.
But Behar (Land of Promise) argues for Ain Umm ed daraj, "spring of the mother of steps," namely, the steps by which the reservoir is reached; "the Fountain of the Virgin," the only real spring near Jerusalem (Bir-eyub is a well, not a spring); which if not meant will be (what is not likely) unmentioned in the Bible. This spring suits better, as being nearer Jerusalem than Bir-eyub, which is too far for 2 Samuel 17:17, and altogether away from the direct road over Olivet to Jordan, and too much in full view of the city for Jonathan's and Ahimaaz' secret purpose. Daraj and Rogelare related names. The Fount of the Virgin is still the women's place of resort for washing and treading clothes; and it is above the king's gardens and so suitable for irrigation, which Bir-eyub is not. Ganneau found the stone of Zoheleth in the village of Siloam under the name Zehweile. This identifies Enrogel with the Fountain of the Virgin.
American Tract Society Bible Dictionary [2]
Fuller's fountain, so named because here the fullers were wont to cleanse their cloths by treading them with their feet. This is believed to be the "well of Nehemiah," now called Bir Eyub, Job's well. It is in the valley of the Kidron, just below its junction with the valley of the son of Hinnom, on the southeast corner of Jerusalem, Joshua 15:7; 18:16 . It is mentioned in the Bible in connection with the conspiracy of Absalom, 2 Samuel 17:17 , and afterwards with that of Adonijah, 1 Kings 1:9 . This well is situated in what is now the prettiest and most fertile spot around Jerusalem. It is one hundred and twenty-five feet deep; is walled up with large squared stones, which on one side rise form an arch, and is apparently of great antiquity.
Morrish Bible Dictionary [3]
A spring on the border of Judah and Benjamin. It was whereJonathan and Ahimaaz stayed in secret, to carry to David any message from Hushai, on the revolt of Absalom; and close to this spring Adonijah called the king's sons together when he exalted himself to succeed David as king. Joshua 15:7; Joshua 18:16; 2 Sam. 17:17; 1 Kings 1:9 . It was no doubt a spring not far from Jerusalem. Bir Eyub, about half amile south of Jerusalem was long supposed to be the spot, but this is a well, not a spring. The Fountain of the Virgin, near the south east corner of the city, is now more generally chosen; but this appears to be too near the city to coincide with the above events.