Mark 8:11-13 - Pharisees Demand A Sign
11 The Pharisees arrived and began arguing with Jesus. They tested him by demanding from him a sign from heaven. 12 He sighed deeply in his spirit and remarked, "Why do those living today demand a sign? I tell all of you with certainty, no sign will be given to this generation." 13 Leaving them, he got into a boat again and crossed to the other side.