Genesis 19:37-38

19:37 The older daughter ¹  gave birth to a son and named him Moab. ²  He is the ancestor of the Moabites of today. 19:38 The younger daughter also gave birth to a son and named him Ben-Ammi. ³  He is the ancestor of the Ammonites of today.

Deuteronomy 2:9

2:9 Then the Lord said to me, “Do not harass Moab and provoke them to war, for I will not give you any of their land as your territory. This is because I have given Ar ⁴  to the descendants of Lot ⁵  as their possession.

¹ tn Heb “the firstborn.”

² sn The meaning of the name Moab is not certain. The name sounds like the Hebrew phrase “from our father” (מֵאָבִינוּ, me’avinu) which the daughters used twice (vv. 32, 34). This account is probably included in the narrative in order to portray the Moabites, who later became enemies of God’s people, in a negative light.

³ sn The name Ben-Ammi means “son of my people.” Like the account of Moab’s birth, this story is probably included in the narrative to portray the Ammonites, another perennial enemy of Israel, in a negative light.

⁴ sn Ar was a Moabite city on the Arnon River east of the Dead Sea. It is mentioned elsewhere in the “Book of the Wars of Yahweh” (Num 21:15; cf. 21:28; Isa 15:1). Here it is synonymous with the whole land of Moab.

⁵ sn The descendants of Lot. Following the destruction of the cities of the plain, Sodom and Gomorrah, as God’s judgment, Lot fathered two sons by his two daughters, namely, Moab and Ammon (Gen 19:30-38). Thus, these descendants of Lot in and around Ar were the Moabites.