Seder Hadoros relates that Ramban once confronted his former student, named Avner, and asked him why he had strayed from the path of observant Judaism. Avner replied that Ramban had once taught that "everything is to be found in the Song of Haázinu" and Avner found the idea so utterly preposterous that it led him to lose faith.
When Ramban stated that he still held by his assertion, Avner challenged him, "If so, where is my name to be found in the song?"
Ramban turned to the wall praying to G-d, and it soon occurred to him that the third letter of each word in verse 26 spelled Avner's name:
אָמַרְתִּי אַפְאֵיהֶם אַשְׁבִּיתָה מֵאֱנוֹשׁ זִכְרָם
On hearing his, Avner repented and mended his ways.
Even though Avner had strayed far from the path of observance, his name was nevertheless recorded in the Torah with his title, Reb Avner, referring to his status as a fully observant Jew, after he had returned - for this was indeed his true essence.
Based on Sichas Shabbos Parshas Haázinu 5742 Lubavitcher Rebbe