Once when Moses tended the flock of Jethro, his father-in-law, his travels led him to the edge of the wilderness, near Horeb. The angel of the Lord appeared to him in a flame of fire out of the midst of the bush. Moses looked and "the bush burned with fire and was not consumed." Moses was commanded to remove his shoes, for the ground upon which he was treading was holy. Through this awe-inspiring event, Moses was consecrated as the first prophet and leader of the Jewish people.

Moses was then told that the Jewish people would be delivered out of the land of Egypt, the source of their oppression. Realizing the awesome responsibility, which was placed upon him, Moses said: "Who am I, that I should go unto Pharaoh, and that I should bring forth the children of Israel out of Egypt?" However, he was reassured by God's avowal of concern for His people.

Moses then asked for the revelation of His name. And God replied: "I Am That I Am." Say to the children of Israel, said the Almighty, "The Lord, the God of your fathers, the God of Abraham, the God of Isaac and the God of Jacob has sent me unto you." Herein lies the unique concept of the Hebrew Deity. Invisible, and unknowable, God's presence can become manifest through human experience. The Eternal as the "unseen mover" throughout Jewish history is a fundamental maxim of Judaism.