Luke 9:43-45

43 And all were astounded at the greatness of God. While everyone was amazed at all that he was doing, he said to his disciples,
44 "Let these words sink into your ears: The Son of Man is going to be betrayed into human hands."
45 But they did not understand this saying; its meaning was concealed from them, so that they could not perceive it. And they were afraid to ask him about this saying.