Exodus 23:20–21: God sends "an angel before thee," who must be heeded, who "will not pardon your transgression," and in whom "my name is." Sent, yet carrying the Name and the divine prerogative of pardon: the double datum in a single pair of verses. Jacob's blessing binds the same figure to redemption, "the angel who hath redeemed me from all evil" in poetic parallel with "the God before whom my fathers … did walk" (Gen 48:15–16), and Isaiah 63:9 recalls "the angel of his presence" who saved them. The christophany tradition reads Jude 5 (NA28: "Jesus, having saved a people out of the land of Egypt") as the NT's own identification; the variant is itself contested, and the page says so.
The name-bearing datum is also the created-angel reading's own strongest ground: an authorized emissary carrying his sender's name and speaking with his sender's authority is the ordinary shape of ancient agency (the shaliach principle), no shared deity required: the reading Augustine anchored (City of God 16.29, PD) and Witherington states plainly (cite-only). Both readings sit on the same two verses; neither is hidden from the other. Sources: ASV text (PD); MannaFest's research index and its contested points.