I AM THAT I AM. — It is generally assumed that this is given to Moses as the full name of God. But perhaps it is rather a deep and mysterious statement of His nature. “I am that which I am.” My nature, i.e., cannot be declared in words, cannot be conceived of by human thought. I exist in such sort that my whole inscrutable nature is implied in my existence. I exist, as nothing else does — necessarily, eternally, really. If I am to give myself a name expressive of my nature, so far as language can be, let me be called “I AM.”
Tell them I AM hath sent me unto you. — I AM, assumed as a name, implies (1) an existence different from all other existence. “I am, and there is none beside me” (Isaiah 45:6); (2) an existence out of time, with which time has nothing to do (John 8:58); (3), an existence that is real, all other being shadowy; (4) an independent and unconditioned existence, from which all other is derived, and on which it is dependent.