No...they ripped him off from the Canaanites...
As noted before, in Mesopotamia the patriarchs worshiped "other gods." On Canaanite soil, they met the Canaanite supreme god, El, and adopted him, but only partially and nominally, bestowing upon him qualities destined to distinguish him and to assure his preeminence over all other gods. He was thus to become El 'Olam (God the Everlasting One), El 'Elyon (God Most High), El Shaddai (God, the One of the Mountains), and El Ro'i (God of Vision). In short, the god of Abraham possessed duration, transcendence, power, and knowledge. This was not monotheism but monolatry (the worship of one among many gods), with the bases laid for a true universalism. He was a personal god too, with direct relations with the individual, but also a family god and certainly still a tribal god. Here truly was the "God of our fathers," who in the course of time was to become the "God of Abraham, Isaac, and Jacob."