[Concerning the 'over-extended domain' of Yahweh:]

It is very interesting to observe that, in the Bible, Yahweh is not exclusively linked to Israel. This point is clearly stressed in the book of Amos, where it is claimed: 'On that day...they may possess the remnant of Edom and all the nations who are called by my name, says the LORD who does this' (Amos 9.11-12). Indeed, it appears from many biblical sources that Yahweh also 'protects' the Canaanite alliances of Edom, Moab and Amon, sometimes against the political interest of the Israelite Alliance. [61]

Even more intriguing is the special attention, in the book of Jeremiah, devoted to the far country of Elam:

I [Yahweh] will terrify Elam before their enemies, and before those who seek their life; I will bring disaster upon them, my fierce anger, says the LORD. I will send the sword after them, until I have consumed them; and I will set my throne in Elam, and destroy their king and officials, says the LORD. But in the latter days I will restore the fortunes of Elam, says the LORD (Jer. 49.37-39).

This oracle is amazingly similar to those devoted to Judah and Israel. Such a commitment concerning Elam suggests that the Elamites were also regarded here as a 'people of Yahweh'. In this case, however, one has to assume a homology (if not an identity) between Yahweh and Napir ('the great god'), the main deity of Elam, who was also the god of metallurgy.

(pp. 401-402)

(from 'Yahweh, the Canaanite God of Metallurgy?', JSOT 33.4 (2009): 387-404)

[61] It is especially mentioned that the Israelites cannot conquer the lands of Edom, Moab and Ammon, since Yahweh has given them forever to the sons of Esau (Deut. 2.5) and Lot (Deut. 2.9, 19). In Jer. 9.24-25, Edom, Moab and Ammon are considered together with Judah as the circumcised, the peoples of Yahweh. The Amos oracles against Amon, Moab, Damas or Edom (Amos 1 and 2) not only mention their 'cimres' against Judah and Israel, but also all the 'crimes' perpetrated between and among them in regard to Yahweh.

Nissim Amzallag