King James Version (KJV)
Excellent speech becometh not a fool: much less do lying lips a prince.
Modern English
Fine speech is not becoming to a fool; still less is false speech to a prince.
Hebrew
לֹ֣א נָ֭אוָה לְנָבָ֣ל שְׂפַת יֶ֑תֶר אַ֝֗ף כִּֽי לְנָדִ֥יב שְׂפַת שָֽׁקֶר׃
loʾ naʾvah lnabal shpat yeter ʾaf kiy lnadiyb shpat shaqer