Mark 8:11-13 - Pharisees Demand A Sign
11 And the Pharisees came out, and began to search out with him, seeking of him a sign from heaven, tempting him. 12 And having sighed deeply in spirit, he says, Why seeks this generation for a sign Verily I say to you, shall a sign be given to this generation. 13 And having let them go, having gone again into the ship, he departed beyond.