לֹ֣א ׀ אֶל־עַמִּ֣ים רַבִּ֗ים עִמְקֵ֤י שָׂפָה֙ וְכִבְדֵ֣י לָשׁ֔וֹן אֲשֶׁ֥ר לֹֽא־תִשְׁמַ֖ע דִּבְרֵיהֶ֑ם אִם־לֹ֤א אֲלֵיהֶם֙ שְׁלַחְתִּ֔יךָ הֵ֖מָּה יִשְׁמְע֥וּ אֵלֶֽיךָ׃
너를 방언이 다르거나 말이 어려워 네가 알아듣지 못할 열국에 보내는 것이 아니니라 내가 너를 그들에게 보내었더면 그들은 정녕 네 말을 들었으리라
Ramban
IM LO’ (IF NOT) AS YE HAVE SPOKEN IN MINE EARS. The meaning thereof is as an expression of wonder: “Will I not do to you as ye have spoken?” Such is the way of the [Sacred] Language: [Thou art sent] not to many people of an unintelligible speech and of a slow tongue, whose words thou canst not understand. ‘Im lo’ (would they not) have hearkened unto thee if I sent thee to them?157Ezekiel 3:5-6. Similarly, ‘im lo’ (if not) as I have thought did it come to pass?158Isaiah 14:24.