A servant cannot be taught by words, because he understands what you say, but he disdains to respond
Other versions
King James Version
A servant will not be corrected by words: for though he understand he will not answer.English Standard Version
By mere words a servant is not disciplined, for though he understands, he will not respond.New International Version
A servant cannot be corrected by mere words; though he understands, he will not respond.