"I am the L–rd your G–d who took you out of the land of Egypt." What is the intent of this? Because He appeared at the Red Sea as a hero waging war, viz. (Exodus 15:3) "The L–rd is a Man of war," and at Mount Sinai, as an elder full of mercy, so as not to provide an opening for the nations of the world to say that there are two Deities, (He said) "I am the L–rd your G–d." It was I at the Red Sea, and it is I on the dry land. It was I in the past and it will be I in time to come. I in this world and I in the world to come. As it is written (Devarim 32:39) "See, now, that I, I am He," (Isaiah 46:4) "And until you grow old, it is I," (Ibid. 44:6) "Thus said the L–rd, the King of Israel, and its Redeemer, the L–rd of hosts: I am first and I am last," and (Ibid. 41:4) "Who wrought and did, the caller of the generations from the beginning? I, the L–rd, am first, and with the last it will be I."