The over-extended domain of Yahweh should not be regarded as the consequence of a rapid diffusion of the Israelite religion during the First Temple period. It is rather the expression of a very ancient homology (if not identity) existing between the gods of metallurgy during the Bronze Age. (p. 403)(from 'Yahweh, the Canaanite God of Metallurgy?', JSOT 33.4 (2009): 387-404)

By analysis of biblical texts, some scholars have assumed for a long time that Yahweh was formerly worshipped in the south of Canaan (especially Edom and/or by the Kenites). The claim that 'Yahweh comes from Seir' [Judges 5.4] has been strengthened by the discovery of Canaanite inscriptions evoking 'Yahweh of Teman', but also Egyptian writings mentioning Negeb and northern Sinai as 'the land of Ywh [sic]'. (p. 389)from 'Yahweh, the Canaanite God of Metallurgy?', JSOT 33.4 (2009): 387-404

The idea of an Edomite origin for Yahweh may be of crucial importance for discovering his former identity, because the south-eastern part of Canaan was known from the earliest times as a very important place for copper metallurgy. (p. 389)from 'Yahweh, the Canaanite God of Metallurgy?', JSOT 33.4 (2009): 387-404

A lack of public use of the name of the metallurgic deities is well known and relates to the initiatory dimension of the cults related to metallurgy. [...] Even though the Israelite cult of Yahweh was public, it seems that the 'use' of his name was submitted to severe restrictions (see, e.g., Exod. 20.7 and Deut. 5.11). (p. 392n23

In Isa. 54.16, Yahweh is explicitly mentioned as the creator of both the copperwork and his work: 'See it is I who have created the smith who blows the fire of coals, and produces a weapon fit for its purposes'. Such an involvement of Yahweh is never mentioned elsewhere for other crafts or human activities. (p. 394)from 'Yahweh, the Canaanite God of Metallurgy?', JSOT 33.4 (2009): 387-404

The god of metallurgy generally appears as an outstanding deity. He is generally involved in the creation of the world and/or the creation of humans. The overwhelming importance of the god of metallurgy reflects the central role played by the copper smelters in the emergence of civilizations throughout the ancient world. (p. 397)(from 'Yahweh, the Canaanite God of Metallurgy?', JSOT 33.4 (2009): 387-404)