Ammon was connected with Israel as being sprung from Lot, and together with Moab, which had the same origin, retained the stamp of its incestuous birth in habits, character, and worship (Genesis 19:30, etc.
). The Ammonites seem to have been a predatory and roving nation, though the abundance of rains in the district shows that they possessed fixed abodes; but Rabbah was the only city of importance in their territory (2 Samuel 11:1).
Their hostility to Israel was first shown in their participation with Moab in the affair of Balsam (Deuteronomy 23:4). Other instances are seen in their treatment of Jabesh-Gilead (1 Samuel 11:1-3) and of David's messengers, and in hiring the Syrians to make war on David (2 Samuel 10:1-6).
We have no historical account of the atrocious outrage on the Gileadites mentioned in the text, but it is quite in character with the ferocity of their disposition, and was doubtless intended to depopulate the territory which they wished to acquire.
This barbarity is spoken of in connection with Hazael (2 Kings 8:12), in concert with whom probably the Ammonites acted. Another rendering would refer the clause to the removing of landmarks, and yet a third to the storming of lofty fortresses.
But the Authorized Version is undoubtedly correct. That they might enlarge their border. The Ammonites laid claim to the territory which the Israelites had wrested from Sihon, lying between the Araon and Jabbok, and made an attempt upon it in the time of Jephthah ( 11:1-40.
), and in later years seized on the possessions of Gad—a proceeding which brought upon them the denunciation of Jeremiah (Jeremiah 49:2-6).