Mark 8:11-13 - Pharisees Demand A Sign
11 And the Pharisees came forth, and began to dispute with him, seeking from him a sign from the sky, testing him. 12 And having sighed deeply in his spirit, he says, Why does this generation seek a sign? Truly I am telling you, if a sign will be given to this generation. 13 And having left them, having entered again into a boat, he departed to the other side.