Moab... Ben-ammi. — Both these names suggest an incestuous origin, but the latter in a less repulsive way. “Son of my people” means one born of intercourse with her own kin and family. It is a striking proof of the vigour of the race of Terah, that from this lone cavern, and after the loss of all the wealth possessed by Lot, these two children were able to reduce to obedience the aborigines dwelling on the eastern shore of the Dead Sea, and establish petty kingdoms there. Both Moabites and Ammonites have finally merged in the Arabs.
Related Commentaries of Genesis 19:37
Genesis 19:37-38
37 And the firstborn bare a son, and called his name Moab: the same is the father of the Moabites unto this day.
38 And the younger, she also bare a son, and called his name Benammi: the same is the father of the children of Ammon unto this day.