"I am Hashem, your G-d, Who took you out of the land of Egypt, out of the house of bondage." With these words, G-d opens the Ten Commandments. But is "I am Hashem, your G-d" a commandment, or simply a statement of fact? And are we commanded to believe in Hashem, or is it a function of our free will to believe in the fact of G-d's existence, or not? Can G-d's reality be commanded? Or simply recognized.