Persecution is an indication that the ones doing the persecuting are under conviction. They realize that they are not living what our words or actions are advocating, so, in defense of ones self, they attack the ones whom they perceive to be the source of their conviction. If this is understood, it makes persecution much easier to take. They aren't just mad at us; they are convicted. When the Gospel is presented in the power of the Holy Spirit, there will always be either a revival or a riot, but not indifference.
There are many forms of persecution. Having your life threatened because of your faith in Jesus is one way we can be persecuted, but it is not the most damaging. History shows that the Church has always flourished under persecution with increased numbers and zeal. During intense, life-threatening persecution, people's priorities get straightened out and the Lord assumes His rightful place. This always works for our good, regardless of what our outward circumstances might be. Remember it is not us that they are persecuting, but rather Christ in you.
