|Easton's Bible Dictionary|
(1.) A city in Moab (Numbers 21:30); called also Dibon-gad (33:45), because it was built by Gad and Dimon (Isaiah 15:9). It has been identified with the modern Diban, about 3 miles north of the Arnon and 12 miles east of the Dead Sea. (see Moabite Stone.)
(2.) A city of the tribe of Judah, inhabited after the Captivity (Nehemiah 11:25); called also Dimonah (Joshua 15:22). It is probably the modern ed-Dheib.
Int. Standard Bible Encyclopedia
di'-bon (dibhon, "washing"; Daibon):
(1) A city of Moab captured by the Amorites (Numbers 21:30), and held by them at the invasion by Israel. It was taken and given to the tribe of Gad, whence it is called Dibon-gad (Numbers 32:34; Numbers 33:45). In Joshua 13:17 it is reckoned to Reuben. Along with other cities in the territory North of the Arnon, Dibon changed hands several times between Moab and Israel. Mesha claims it (MS), and in Jeremiah 48:18, 22 it is named among the cities of Moab. The form of the name, Dimon, in Isaiah 15:9, may have been given to make it resemble the Hebrew dam, "blood," to support the play upon words in the verse (HDB, under the word). It is represented by the modern Dhiban, about 4 miles North of Aroer (`Ara`ir), on the line of the old Roman road. The ruins that spread over two adjacent knolls are of no importance: walls, a tower, cistern, etc. Near Dibon the famous Moabite Stone was found.
(2) A town in Judah, occupied after the exile (Nehemiah 11:25). It may be the same as Dimonah (Joshua 15:22); unidentified.
Dibon (12 Occurrences)
Numbers 21:30 We have shot at them. Heshbon has perished even to Dibon. We have laid waste even to Nophah, Which reaches to Medeba." (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
Numbers 32:3 "Ataroth, and Dibon, and Jazer, and Nimrah, and Heshbon, and Elealeh, and Sebam, and Nebo, and Beon, (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
Numbers 32:34 The children of Gad built Dibon, and Ataroth, and Aroer, (WEB KJV JPS ASV BBE DBY WBS NAS RSV NIV)
Numbers 33:45 They traveled from Iyim, and encamped in Dibon Gad. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
Numbers 33:46 They traveled from Dibon Gad, and encamped in Almon Diblathaim. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
Joshua 13:9 from Aroer, that is on the edge of the valley of the Arnon, and the city that is in the middle of the valley, and all the plain of Medeba to Dibon; (WEB KJV JPS ASV BBE DBY WBS NAS RSV NIV)
Joshua 13:17 Heshbon, and all its cities that are in the plain; Dibon, Bamoth Baal, Beth Baal Meon, (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
Nehemiah 11:25 As for the villages, with their fields, some of the children of Judah lived in Kiriath Arba and its towns, and in Dibon and its towns, and in Jekabzeel and its villages, (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
Isaiah 15:2 They have gone up to Bayith, and to Dibon, to the high places, to weep. Moab wails over Nebo and over Medeba. Baldness is on all of their heads. Every beard is cut off. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
Isaiah 15:9 For the waters of Dimon are full of blood: and I'm sending even more on Moab, a lion on those of Moab who go in flight, and on the rest of the land. (See RSV)
Jeremiah 48:18 You daughter who dwells in Dibon, come down from your glory, and sit in thirst; for the destroyer of Moab has come up against you, he has destroyed your strongholds. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
Jeremiah 48:22 and on Dibon, and on Nebo, and on Beth Diblathaim, (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)