As disciples, we need to use wisdom and discernment in all we do. We should not fear because the Holy Spirit will speak on our behalf. Often when placed in situations we can submit to fear or backlash and conjure up a response that does not come from the spirit of God. VS 20 states the holy spirit will speak on our behalf. As disciples we should listen before reacting. This will allow us to become like our teacher.
Times will come when what we face now is nothing compared to the persecution that will come. But we must endure through the strength and reliance of the Holy Spirit.