Should we ever make use of harsh language?

That seems to be a very difficult question in our days. In fact it is one on which yours truly has a less than perfect record. At one point on my journey, I realized that what what I called godliness, was in reality, very feminine traits. I was shocked with my discovery and made an heroic effort to snap out of it. Be a man! That was my daily self exhortation. What happened was that in many situations that actually called for gentleness, I started swinging for the fences at the sound of the first bell. True virtues, like meekness for example, were avoided by me like the plague, for being "signs of weakness". A few headaches and a couple of tears later, yes I did say tears, I find them to be very manly (won't ever admit to any but...) by the grace of God, I started seeing some things about being a masculine man specifically regarding the use of language. How should we communicate with people? Is there a place for shocking statements? Sarcasm perhaps? Am I allowed to make sure they feel the heat in my tone of voice? The Bible seems to present a few guys not being afraid to put the pedal to the metal on some issues. Some would say that even our Lord was harsh and at times, mocked the religious leaders. If He ever did it, it would be very hard to challenge the validity of such ways of communication. Brother Mark Driscoll seems to have an opinion about it and Dr. John Piper is willing to hear it. He has called Driscoll to preach on the subject during the DG Conference in September. With dear brothers like Sinclair Ferguson and Thabiti present, this should be a very interesting conference. I look forward to getting the audio as soon as DG Ministries releases it. Pray for the brothers as they prepare for, in my opinion, a very important conference.
Here is just a little video teaser DG has put out this week I also would like to recommend to you the short video of Mark Driscoll on the "chick-i-fied"church.
Be blessed.