King James Version (KJV)
The wise in heart shall be called prudent: and the sweetness of the lips increaseth learning.
Modern English
The wise of heart is called discerning, and sweetness of speech increases persuasiveness.
Hebrew
לַחֲכַם לֵ֭ב יִקָּרֵ֣א נָב֑וֹן וּמֶ֥תֶק שְׂ֝פָתַ֗יִם יֹסִ֥יף לֶֽקַח׃
laḥakam leb yiqareʾ nabvon vmeteq shpatayim yosiyf leqaḥ