How forcible are right words! but what doth your arguing reprove? How forcible are right words - A well-constructed argument, that has truth for its basis, is irresistible.
But what doth your arguing reprove? - Your reasoning is defective, because your premises are false; and your conclusions prove nothing, because of the falsity of the premises whence they are drawn. The last clause, literally rendered, is, What reproof, in a reproof from you? As you have proved no fault you have consequently reproved no vice. Instead of מה נמרצו mah nimretsu, "how forcible," מה נמלצו mah nimletsu, "how savoury or pleasant," is the reading of two MSS., the Chaldee, and some of the rabbins. Both senses are good, but the common reading is to be preferred.