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Why is Abraham often considered an early supporter of monotheism?

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József Molnár: The March of Abraham — Abraham *The March of Abraham*, painting by József Molnár, 19th century; in the Hungarian National Gallery, Budapest.

Abraham is widely recognized as a foundational figure in the development of monotheism—the belief in a single God—due to his central role in the traditions of Judaism, Christianity, and Islam.123

While he is often called the first monotheist, scholars note that his religious practice is more accurately described in historical and biblical contexts as monolatry—the worship of one god among many—as he transitioned from the polytheistic environment of his origins in Mesopotamia to the worship of a personal, transcendent God in Canaan.4

His status as a supporter of monotheism is reinforced by:
* The Covenant: The biblical covenant (Genesis 15) established a unique, direct relationship between Abraham and God, emphasizing his devotion and obedience.23
* Theological Innovation: In later non-canonical texts, Abraham is frequently portrayed as an iconoclast who actively rejected polytheism.2
* Religious Legacy: His life is viewed as the origin of the "religion of Abraham," serving as a unifying figure whose faith in one God became the doctrinal foundation for the Abrahamic religions.2