King James Version (KJV)
For thou {art} not sent to a people of a strange speech and of an hard language, {but} to the house of Israel; {of a...: Heb. deep of lip, and heavy of tongue}
Modern English
For you are not sent to a people of a strange speech and of a hard language, but to the house of Israel;
Hebrew
כִּ֡י לֹא֩ אֶל־עַ֨ם עִמְקֵ֥י שָׂפָ֛ה וְכִבְדֵ֥י לָשׁ֖וֹן אַתָּ֣ה שָׁל֑וּחַ אֶל־בֵּ֖ית יִשְׂרָאֵֽל׃
kiy loʾ ʾel-ʿam ʿimqey shapah vkibdey lashvon ʾatah shalvḥa ʾel-beyt yishraʾel