Abstract: The three great monotheistic religious traditions (Judaism, Christianity, and Islam) all claim Abraham as father and prototypical monotheist. Though Adam is the putative first father in all of these traditions, he is seldom remembered in Judeo-Christian scriptural, apocryphal, or pseudepigraphic texts as an exemplary monotheist. This essay briefly reviews why Abraham retains the lofty title “Father of Monotheism” while exploring how Latter-day restoration scripture adds to and challenges this ancient tradition vis-à-vis enhanced understanding of Adam’s covenantal and monotheistic fidelity to God.