Why the different guises? The Hasidic master Levi Yitzchak of Berditchev explains that God does not change, but rather it is those who perceive God who are different. God appears to each person in a manner that he or she can understand.
Similarly, the Zohar relates that God puts on different garments when descending to the world, for the world could not otherwise bear God’s presence. These garments are the biblical narratives, which conceal the mystery within. Only those who are wise of heart can penetrate the surface and glimpse the hidden reality.