 The title, I Am, speaks of God's self-existence and eternal being. There has never been a time when God was not. He's the same, though, through all the ages. There will never be a time when God ceases to be God. He is Jehovah, Yahweh, I Am. With our mouths, we can say those words, but they are beyond our full comprehension, as it should be for an infinite God. Because He is no ending.