Matthew 10:24 & 25
"'The student is not above the teacher, nor a servant above his master. It is enough for students to be like their teachers, and servants like their masters. If the head of the house has been called Beelzebul, how much more the members of his household!'" NIV translation
The goal of following or learning from someone is to follow so closely that the only one that people see is the one that is leading. That is the mark of a good student or a good servant. With that in mind, Jesus explains to the apostles that the persecution that they are going to face is because of the fact that they are doing a good job of representing Him. He reminds them of the fact that the Pharisees had accused Him of being the "prince of demons" and so they will face the same type of thing.
That reminds us that, if we are not facing opposition, then, we are probably not representing Jesus very well. In our world today, it seems like everyone wants to "get along" no matter what it costs and to "live and let live".
That is ok, if you are not called to be a disciple of Jesus Christ, but, as Christians, we are to tell people the truth. Our hope is that they will turn from their ways and accept Jesus as their Lord and Savior. Those that God has prepared will do so while others will choose to attack us. Like the apostles, we must be ready to move on in search of those that he has prepared.
In our world today, others might not call you "Beelzebul" but, if you are truly trying to follow your Lord, they might call you something like "Jesus freak", "radical", etc. We should be prepared for this and to even wear it as a sort of "badge of honor". That means that we are closely following our Lord and that is a good thing. Many times, those that call you names and such will come to you later when they are facing troubles. At that time, you might have the opportunity to tell them more about Jesus. As Jesus told the apostles, we must be ready to face all of the things that He faced on our behalf.