John. 13:19: "hina pisteusete ... hoti ego eimi I am [he]" (NWT)
Isaiah. 43:10: "hina pisteusete ... hoti ego eimi I am [He]" The NWT translation says "I am the same One" NWT
Even if one were to theorize that Jesus Himself did not attempt to make such an obvious connection between Himself and Yahweh (which would be difficult enough to do!) why would John, being obviously familiar with the LXX, intentionally insert this kind of parallelism?