John 2:18

2:18 So then the Jewish leaders responded, “What sign can you show us, since you are doing these things?”

John 3:28

3:28 You yourselves can testify that I said, ‘I am not the Christ,’ but rather, ‘I have been sent before him.’

John 6:60

6:60 Then many of his disciples, when they heard these things, said, “This is a difficult saying! Who can understand it?”

John 14:5

14:5 Thomas said, “Lord, we don’t know where you are going. How can we know the way?”