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Easton's Bible Dictionary [1]

 Genesis 19:38 Deuteronomy 2:16-20 Judges 5:2 Judges 10:11 2 Chronicles 20:1 Zephaniah 2:8 Deuteronomy 23:4 Deuteronomy 2:20 Genesis 14:5 Genesis 19:38 Deuteronomy 23:3 Judges 3:13 Judges 11:33 1 Samuel 11:11 2 Samuel 10:6-14 2 Samuel 10:14 12:26-31 2 Chronicles 20:25 26:8 Jeremiah 49:1 Ezekiel 25:3,6 1 Kings 14:31 2 Chronicles 12:13

The prophets predicted fearful judgments against the Ammonites because of their hostility to Israel ( Zephaniah 2:8;  Jeremiah 49:1-6;  Ezekiel 25:1-5,10;  Amos 1:13-15 ).

The national idol worshipped by this people was Molech or Milcom, at whose altar they offered human sacrifices ( 1 Kings 11:5,7 ). The high places built for this idol by Solomon, at the instigation of his Ammonitish wives, were not destroyed till the time of Josiah ( 2 Kings 23:13 ).

King James Dictionary [2]

AM'MONITE, n.Cornu ammonis, from Jupiter Ammon, whose statues were represented with ram's horns.

Serpent-stone, or cornu ammonis, a fossil shell, curved into a spiral, like a ram's horn of various sizes, from the smallest grains to three feet in diameter. This fossil is found in stratums of limestone and clay, and in argillaceous iron ore. It is smooth or ridged the ridges strait, crooked or undulated.

Webster's Dictionary [3]

(n.) A fossil cephalopod shell related to the nautilus. There are many genera and species, and all are extinct, the typical forms having existed only in the Mesozoic age, when they were exceedingly numerous. They differ from the nautili in having the margins of the septa very much lobed or plaited, and the siphuncle dorsal. Also called serpent stone, snake stone, and cornu Ammonis.

Cyclopedia of Biblical, Theological and Ecclesiastical Literature [4]

(Heb., Ammoni', עִמּוֹנַי , Sept. Ἀμμωνίτης and Ἀμμανίτης ; also בְּטֵי עִמּוֹן , "children of Ammon;" Sept. Υἱοὶ Ἀμμών ) , the usual designation of the people descended from Ben-Ammi, the son of Lot by his younger daughter ( Genesis 19:38; comp.  Psalms 83:7-8), as Moab was by the elder; and dating from the destruction of Sodom. The near relation between the two peoples indicated in the story of their origin continued throughout their existences from their earliest mention (Deuteronomy 2) to their disappearance from the biblical history ( Judges 5:2) the brother-tribes are named together (comp.  Judges 10:10;  2 Chronicles 20:1;  Zephaniah 2:8, etc.). Indeed, so close was their union, and so near their identity, that each would appear to be occasionally spoken of under the name of the other. Thus the "land of the children of Ammon" is said to have been "given to the children of Lot," i.e. to both Ammon and Moab ( Deuteronomy 2:19). They are both said to have hired Balaam to curse Israel ( Deuteronomy 23:4), whereas the detailed narrative of that event omits all mention of Ammon (Numbers 22, 23). In the answer of Jephthah to the king of Ammon the allusions are continually to Moab ( Judges 11:15;  Judges 11:18;  Judges 11:25), while Chemosh, the peculiar deity of Moab ( Numbers 21:29), is called "thy god" ( Numbers 21:24). The land from Arnon to Jabbok, which the king of Ammon calls "my land" ( Numbers 21:13), is elsewhere distinctly stated to have once belonged to a "king of Moab" ( Numbers 21:26). "Land" or "country" is, however, but rarely ascribed to them, nor is there any reference to those habits and circumstances of civilization the "plentiful fields," the "hay," the "summer fruits," the

"vineyards," the "presses," and the "songs of the grape-treaders" which so constantly recur in the allusions to Moab (Isaiah 15, 16; Jeremiah 48); but, on the contrary, we find everywhere traces of the fierce habits of marauders in their incursions, thrusting out the right eyes of whole cities ( 1 Samuel 11:2), ripping up the women with child ( Amos 1:13), and displaying a very high degree of crafty cruelty ( Jeremiah 41:6-7;  Judges 7:11-12) to their enemies, as well as a suspicious discourtesy to their allies, which on one occasion ( 2 Samuel 10:1-5) brought all but extermination on the tribe (12:31). Nor is the contrast less observable between the one city of Ammon, the fortified hold of Rabbah ( 2 Samuel 11:1; Ezra 25:5;  Amos 1:13), and the "streets," the "House-Tops," and the "high-places" of the numerous and busy towns of the rich plains of Moab (Jeremiah 48; Isaiah 15, 16). Taking the above into account, it is hard to avoid the conclusion that, while Moab was the settled and civilized half of the nation of Lot, the Bene-Ammon formed its predatory and Bedouin section. A remarkable confirmation of this opinion occurs in the fact that the special deity of the tribe was worshipped, not in a house or on a high place, but in a booth or tent designated by the very word which most keenly expressed to the Israelites the contrast between a nomadic and a settled life ( Amos 5:26;  Acts 7:43). (See Succoth). (See Stanley, Palest. App. § 89.) On the west of Jordan they never obtained a footing. Among the confusions of the times of the judges we find them twice passing over; once with Moab and Amalek, seizing Jericho, the "city of palm-trees" ( Judges 3:13), and a second time "to fight against Judah and Benjamin, and the house of Ephraim;" but they quickly returned to the freer pastures of Gilead, leaving but one trace of their presence in the name of Chephar ha-Ammonai, "the hamlet of the Ammonites" ( Joshua 18:24), situated in the portion of Benjamin somewhere at the head of the passes which lead up from the Jordan valley, and form the natural access to the table-land of the west country.

Unlike Moab, the precise position of the territory of the Ammonites is not ascertainable. They originally occupied a tract of country (sometimes called Ammonitis, Ἀμμανῖτις ,  2 Maccabees 4:26; comp. Joseph. Ant. 5,7, 9; 11:2, 1) east of the Amorites, and separated from the Moabites by the river Arnon, and from Bashan or Gilead by the Jabbok ( Deuteronomy 3:16;  Joshua 12:2). The capital of this naturally well-fortified territory

( Numbers 21:24) was Rabbath-Ammon ( Deuteronomy 3:11;  Amos 1:14; comp. Reland, Paloest. R. 103 sq.; Cellarii Notit. 2, 671 sq.). It was previously in the possession of a gigantic race called "Zamzummim"  Deuteronomy 2:20), "but the Lord destroyed them before the Ammonites, and they succeeded them and dwelt in their stead." The Israelites, on teaching the borders of the promised land, found Sihon, king of Heshbon, in possession by conquest of the district adjoining the Dead Sea ( Numbers 21:26), but were commanded not to molest the children of Ammon, for the sake of their progenitor Lot ( Deuteronomy 2:19). But, though thus preserved from the annoyance which the passage of such an immense host through their country might have occasioned, they showed them no hospitality or kindness; they were therefore prohibited from "entering the congregation of the Lord" (i.e. from being admitted into the civil community of the Israelites) "to the tenth generation forever" ( Deuteronomy 23:3). This is evidently intended to be a perpetual prohibition, and was so understood by Nehemiah ( Nehemiah 13:1). The first mention of their active hostility against Israel occurs in  Judges 3:13 : "The king of Moab gathered unto him the children of Ammon and Amalek, and went and smote Israel." Later we are informed that the children of Israel forsook Jehovah and served the gods of various nations, including those of the children of Ammon, and the anger of Jehovah was kindled against them, and he sold them into the hands of the Philistines and of the children of Ammon. The Ammonites crossed over the Jordan, and fought with Judah, Benjamin, and Ephraim, so that "Israel was sore distressed." In answer to Jephthah's messengers ( Judges 11:12), the king of Ammon charged the Israelites with having taken away that part of his territories which lay between the rivers Arnon and Jabbok, which, in  Joshua 13:25, is called "half the land of the children of Ammon," but was in the possession of the Amorites when the Israelites invaded it; and this fact was urged by Jephthah, in order to prove that the charge was ill- founded. Jephthah "smote them from Aroer to Minnith, even twenty cities, with a very great slaughter" ( Judges 11:33; Josephus, Ant. 5, 7, 10). The Ammonites were again signally defeated by Saul ( 1 Samuel 11:11), and, according to Josephus, their king, Nahash, was slain (Ant. 6, 5, 3). His successor, who bore the same name, was a friend of David, and died some years after his accession to the throne. In consequence of the gross insult offered to David's ambassadors by his son Hanun ( 2 Samuel 10:4 : Joseph. Ant. 7, 6, 1), a war ensued, in which the Ammonites were defeated, and their allies, the Syrians, were so daunted "that they feared to help the children of Ammon any more" ( 2 Samuel 10:19). In the following year David took their metropolis. Rabbah, and great abundance of spoil, which is probably mentioned by anticipation in  2 Samuel 8:12 ( 2 Samuel 10:14;  2 Samuel 12:26-31; Joseph. Ant. 7, 7, 8). In the reign of Jehoshaphat the Ammonites joined with the Moabites and other tribes belonging to Mount Seir to invade Judah; but, by the divine intervention, were led to destroy one another. Jehoshaphat and his people were three days in gathering the spoil ( 2 Chronicles 20:25). The Ammonites "gave gifts" to Uzziah ( 2 Chronicles 26:8), and paid a tribute to his son Jotham for three successive years, consisting of 100 talents of silver, 1000 measures of wheat, and as many of barley. When the two and a half tribes were carried away captive, the Ammonites took possession of the towns belonging to the tribe of Gad ( Jeremiah 49:1). "Bands of the children of Ammon" and of other nations came up with Nebuchadnezzar against Jerusalem, and joined in exulting over its fall ( Ezekiel 25:3;  Ezekiel 25:6). Yet they allowed some of the fugitive Jews to take refuge among them, and even to intermarry ( Jeremiah 40:11;  Nehemiah 13:13). Among the wives of Solomon's harem are included Ammonite women ( 1 Kings 11:1), one of whom, Naamah, was the mother of Rehoboam ( 1 Kings 14:31;  2 Chronicles 12:13), and henceforward traces of the presence of Ammonite women in Judah are not wanting ( 2 Chronicles 24:26;  Nehemiah 13:23;  Ezra 9:1; see Geiger, Urschrift, p; 47, 49; 299). In the writings of the prophets terrible denunciations are uttered against the Ammonites on account of their rancorous hostility to the people of Israel, and the destruction of their metropolis, Rabbah; is distinctly foretold

( Zephaniah 2:8;  Jeremiah 49:1-6;  Ezekiel 25:1-5;  Ezekiel 25:10;  Amos 1:13-15). (See Rabbah). On the return of the Jews from Babylon the Ammonites manifested their ancient hostility by deriding and opposing the rebuilding of Jerusalem ( Nehemiah 4:3;  Nehemiah 4:7-8). Both Ezra and Nehemiah expressed vehement indignation against those Jews who had intermarried with the heathen (Ezra 10;  Nehemiah 13:25), and thus transgressed the divine command ( Deuteronomy 7:3). The last appearances of the Ammonites in the biblical narrative are in the books of Judith (5-7) and of the Maccabees ( 1 Maccabees 5:6;  1 Maccabees 5:30-43), and it has been already remarked that their chief characteristics close alliance with Moab, hatred of Israel, and cunning cruelty are maintained to the end. Judas Maccabeeus fought many battles with the Ammonites, and took Jazer, with the towns belonging to it ( 1 Maccabees 5:6;  1 Maccabees 5:3-43). In the time of Antiochus Epiphanes, Josephus (Ant. 13, 8, 1) speaks of a certain Zeno Cotylas as ruler of Philadelphia (the older Rabbah). Justin Martyr affirms that in his time the Ammonites were numerous (Dial. cum Tryph. § 119). Origen speaks of their country under the general denomination of Arabia (In Job. c. i). Josephus says that the Moabites and Ammonites were inhabitants of Coele-Syria (Ant. 1, 11, 5; 11, 5, 8). (See Ammon).

The tribe was governed by a king ( Judges 11:12, etc.;  1 Samuel 12:12;  2 Samuel 10:1;  Jeremiah 40:14) and by "princes," שָׂרים ( 2 Samuel 10:3;  1 Chronicles 19:3). Their national idol was Molech or Milcom (see Jour. Sac. Lit. 1852, p. 365 sq.), whose worship was introduced among the Israelites by the Ammonitish wives of Solomon ( 1 Kings 11:5;  1 Kings 11:7); and the high-places built by that sovereign for this "abomination" were not destroyed till the reign of Josiah ( 2 Kings 23:13). Besides Nahash and Hanun, an Ammonitish king, Baalis, is mentioned by Jeremiah (40:14) and Josephus (Ant. 10, 9, 3). The following Ammonite names are preserved in the sacred text: Achior ( Judith 5:5, etc.), Baalis ( Jeremiah 40:14), Hanun ( 2 Samuel 10:1, etc.), Molech, Naamah ( 1 Kings 14:21, etc.), Nachash ( 1 Samuel 11:1, etc.), Shobi ( 2 Samuel 17:27), Timotheus ( 1 Maccabees 5:6. etc.), Tobijah ( Nehemiah 2:10, etc.), Zelek ( 2 Samuel 23:37); to which may probably be added the name Zamzummim, applied by the Ammonites to the Rephaim whom they dispossessed. (See Canaanite).