" So, Nietzsche said, “Life is meaningless, but have courage anyway.” Jesus also called His people to be courageous in the face of difficulty, adversity, and hostility, but He did not call them to a groundless courage. As we know, Jesus told His disciples, “Take heart” (John 16:33), or, as some translations put it, “Be of good cheer.” However, He did not simply tell them to take heart for the sake of taking heart. He gave them a reason why they ought to have a sense of confidence and assurance for the Christian life. He said, “Take heart; I have overcome the world. "

― R.C. Sproul , Who Is The Holy Spirit? (Crucial Questions, #13)