The reason Jesus Christ has to argue, and the reason we have to show him arguing, is that not only in the Bible but ever since (and we all see it), when people come to Jesus Christ, they read his statements, they read his life, and they always try to take them and pour them into their existing assumptions about reality.
So people say, ‘Yes, Jesus Christ … basically he said what all the religions say: it’s all about love.’ Or, ‘Yes, Jesus Christ … basically he’s saying what all the philosophers have said: it’s really about living an unselfish life. It’s really about leading a life of character.’ Jesus Christ continually comes and says, ‘No, no, no. No one has ever said what I’m saying. No one has ever claimed the things I’m claiming.’
What he’s saying continually in here is ‘I demand you listen to me. I do not come into anybody’s live to revise or supplement or add to your current worldview. I come in to blast out all of your foundational assumptions. I demand to be the thing through which you see everything. I’m here to open up new vistas, new realms of knowledge. I’m here to explode your paradigms.’
~ Tim Keller