And he sighed deeply in his spirit, and said, Why does this generation seek for a sign? Truly I say to you, There shall no sign be given to this generation.
And when Jesus knew it, he said to them, Why do you reason, because you have no bread? Do you not perceive, neither understand? Do you still have your heart hardened?
Jesus said to him, Have I been such a long time with you, and yet you have not known me, Philip? He that has seen me has seen the Father; and how can you say then, Show us the Father?