Don

Mar 8:10 And immediately he got into the boat with his disciples and went to the district of Dalmanutha.
Mar 8:11 The Pharisees came and began to argue with him, seeking from him a sign from heaven to test him.
Mar 8:12 And he sighed deeply in his spirit and said, “Why does this generation seek a sign? Truly, I say to you, no sign will be given to this generation.”
Mar 8:13 And he left them, got into the boat again, and went to the other side.

The disciples were with Jesus when he said no sign would be given to this generation. This generation includes his disciples.

Luk 11:29 When the crowds were increasing, he began to say, “This generation is an evil generation. It seeks for a sign, but no sign will be given to it except the sign of Jonah.