Mark 8:11 - 8:13
11 And the Pharisees came out and began to argue with Him, seeking from Him a sign from heaven, testing Him. 12 And sighing deeply in His spirit, He *said, “Why does this generation seek a sign? Truly I say to you, no sign will be given to this generation.” 13 And leaving them, He again embarked and went away to the other side.