King James Version
Sound speech, that cannot be condemned; that he that is of the contrary part may be ashamed, having no evil thing to say of you.New International Version
and soundness of speech that cannot be condemned, so that those who oppose you may be ashamed because they have nothing bad to say about us.Catholic Public Domain Version
with sound words, irreproachably, so that he who is an opponent may dread that he has nothing evil to say about us