In Judaism, God is traditionally conceived as a singular, monotheistic deity known as Yahweh, the God of Abraham, Isaac, and Jacob, who liberated the Israelites from Egypt and gave them the Law at Mount Sinai. This unique and perfect God is understood as the omnipotent, omnipresent, and omniscient sole creator of the universe, characterized by both transcendence and immanence. Judaism strictly forbids portraying God in images or associating partners with His absolute singularity and incorporeal nature.

The most sacred name of God, the Tetragrammaton (YHWH), is traditionally not pronounced by Jews, who instead use terms like "HaShem" ("the Name") or "Adonai" ("My Lord"). The medieval philosopher Moses Maimonides profoundly influenced Jewish thought, articulating God as an absolute, indivisible, and incomparable creator deity, the ultimate cause and preserver of all existence. While traditional views emphasize a personal yet transcendent God, some modern interpretations view God as an impersonal force or ideal.