Simon Peter spells it out very clearly…you will be insulted, slandered, maligned, and just plain bad mouthed by the world…there’s no way around it…and being a Christian doesn’t exempt you from it. But what we do need to bear in mind, is that the unbeliever is watching very closely to see our reactions…will we repay evil with evil, or will they see Jesus in us? The final words of this verse are also very important, for we may never see the influence of our doing good in this lifetime…but it never should detract us from continuing to do what is right.