Without doubt, many Christians manage to be offensive for reasons other than the offense of the gospel. This is to our shame and to the injury of our gospel witness. Nevertheless, there is no way for a faithful Christian to avoid offending those who are offended by Jesus Christ and His cross. The truth claims of Christianity, by their very particularity and exclusivity, are inherently offensive to those who would demand some other gospel.
Christians must not only contend for the preservation and protection of free speech - essential for the cause of the gospel - we must also make certain that we do not fall into the trap of claiming offendedness for ourselves. We must not claim a right not to be offended, even as we must insist that there is no such right and that the social construction of such a right will mean the death of individual liberty, free speech, and the free exchange of ideas.
Once we begin playing the game of offendedness, there is no end to the matter. There simply is no right not to be offended, and we should be offended by the very notion that such a right could exist.
-- p. 35-36, Chapter 5: The Culture of Offendedness from Culture Shift by Albert Mohler (italics original)
Albert Mohler, the president of The Southern Baptist Theological Seminary, offers a wonderful insight and guidance for Christians who must face the world which is opposed to Jesus and His teachings. This excerpt comes from just one of the twenty short chapters in the book, Culture Shift. I highly recommend it to anyone who wants to think more clearly about how to live in this world. He also writes regularly on his own website: http://www.albertmohler.com/ It's worth a visit every now and then.