וּמֶ֤ה ׀ לֹא־תִשָּׂ֣א פִשְׁעִי֮ וְתַעֲבִ֪יר אֶת־עֲוֺ֫נִ֥י כִּֽי־עַ֭תָּה לֶעָפָ֣ר אֶשְׁכָּ֑ב וְשִׁ֖חֲרְתַּ֣נִי וְאֵינֶֽנִּי׃ (פ)
און װאָס פֿאַרגיסטו ניט מײַן פֿאַרברעך, און טוסט ניט אָפּ מײַן זינד?װאָרום אַצונד װעל איך ליגן אין שטױב, און װעסט מיך זוכן, און איך װעל ניט זײַן.
Otzar Midrashim
The Raavya (19th chapter) wrote that originally it was called Midrash Rabbi Nehunya ben HaKana (and so it is referred to by the Ramban and the Tzioni), after its opening "Said Rabbi Nehunya ben HaKana" (even though his name is not mentioned a second time in this book), and afterwards there was uncertainty whether he authored it, so they called it Sefer HaBahir, from the verse it opens with "Pure it is in the skies" (Job 37:21).