was a descendant of the Seleucid Tobiad dynasty of Tobiah, whom Nehemiah mentions in the 5th century BCE as an Ammonite (ii. 19) from the east-Jordanian district. The last notice of the Ammonites occurs in Justin Martyr's Dialogue with Trypho (§ 119), in the second century CE; Justin affirms that they were still a numerous people. Biblical account The first mention of the Ammonites in the Hebrew Bible is in . It is stated there that they descended from Ben-Ammi, a son of Lot with his younger daughter who plotted with her sister to intoxicate Lot and, in his inebriated state, have intercourse with him to become pregnant. Ben-Ammi literally means "son of my people". After the destruction of Sodom and Gomorrah, Lot's daughters' plot resulted in them conceiving and giving birth to Ammon and his half-brother, Moab. This narrative has traditionally been considered literal fact; but is now generally interpreted as recording a gross popular irony by which the Israelites expressed their loathing of the morality of the Moabites and Ammonites. It has been doubted, however, whether the Israelites would have directed such irony to Lot himself. The Ammonites settled to the east of the Jordan, invading the Rephaim lands east of Jordan, between the Jabbok and Arnon, dispossessing them and dwelling in their place. Their territory originally comprising all from the Jordan to the wilderness, and from the River Jabbok south to the River Arnon. It was accounted a land of giants; and that giants formerly dwelt in it, whom the Ammonites called Zamzummim. Shortly before the Israelite Exodus, the Amorites west of Jordan, under King Sihon, invaded and occupied a large portion of the territory of Moab and Ammon. The Ammonites were driven from the rich lands near the Jordan and retreated to the mountains and valleys to the east. The invasion of the Amorites created a wedge and separated the two kingdoms of Ammon and Moab. Throughout the Bible, the Ammonites and the Israelites are portrayed as mutual antagonists. During the Exodus, the Israelites were prohibited by the Ammonites from passing through their lands. The Ammonites soon allied themselves with Eglon of Moab in attacking Israel. The Ammonites maintained their claim to part of Transjordan, after it was occupied by the Israelites who obtained it from Sihon. During the days of Jephthah, the Ammonites occupied the lands east of the River Jordan and started to invade