Helaman 8:3

 "For behold, Nephi had spoken unto them concerning the corruptness of their law; yea, many things did Nephi speak which cannot be written; and nothing did he speak which was contrary to the commandments of God."

Nephi doesn't hold anything back as he tells the wicked that they need to stop being evil. He tells them exactly what is right and that their works are the works of the devil. He was very bold and clear as he spoke with the Spirit. Today there are many leaders who speak boldly and truthfully. They are not going against God, rather they are speaking on His behalf.