“The lips of the righteous feed many, but fools die for want of wisdom.” (Proverbs 10:21) What he says goes out and “feeds” the ears of many. The words are feeding the ears of people who are listening. The words feed because they are helpful, hopeful, beneficial words the listeners can use in their lives. The ears gobble them up and send them to the brain, intellect, spirit, emotions to be digested and used in life.
But there are some, the fools, that will not hear. This is a choice; the words are spoken but they choose to reject, not to hear, them. Perhaps these words conflict with how they intend to live their life. Perhaps they will effect their money or status. Perhaps they would have to change their direction.