So Moses, wisely enough, converts that into a third-person formula: okay, he will be who he will be, he is who he is, "Yahweh asher Yahweh." God's answer to the question of his name is this sentence, and Moses converts it from a first-person to a third-person sentence: he will be who he will be; he is who he is; he will cause to be, I think most people think now, what he will cause to be, and that sentence gets shortened to "Yahweh". This is the Bible's explanation for the name Yahweh, and as the personal name of God, some have argued that the name Yahweh expresses the quality of being, an active, dynamic being.