Jesus warned His disciples ahead of time so they would not stumble, quit, or be stopped when persecution came. John 16 shows that the hatred they would face would not only come from the openly wicked world, but also from religious people who believed they were serving God while rejecting Christ and harming His followers. The word "offended" means more than having hurt feelings; it means being hindered, caused to stumble, or stopped in the way. Real faith must be grounded in the words of Jesus so it can endure when trouble, rejection, slander, misunderstanding, or persecution comes. True believers will continue in Christ because they belong to Him, abide in Him, and cannot be separated from Him, even when the world and false religion oppose them. Believers must know what Jesus said, expect tribulation, refuse to quit over hurt or opposition, and let their light shine faithfully in a world that hates the truth.