Mark 9:30-32

30 They went on from there and passed through Galilee. He did not want anyone to know it;
31 for he was teaching his disciples, saying to them, "The Son of Man is to be betrayed into human hands, and they will kill him, and three days after being killed, he will rise again."
32 But they did not understand what he was saying and were afraid to ask him.

Mark 9:30-32 In-Context

28 When he had entered the house, his disciples asked him privately, "Why could we not cast it out?"
29 He said to them, "This kind can come out only through prayer."
30 They went on from there and passed through Galilee. He did not want anyone to know it;
31 for he was teaching his disciples, saying to them, "The Son of Man is to be betrayed into human hands, and they will kill him, and three days after being killed, he will rise again."
32 But they did not understand what he was saying and were afraid to ask him.
33 Then they came to Capernaum; and when he was in the house he asked them, "What were you arguing about on the way?"
34 But they were silent, for on the way they had argued with one another who was the greatest.
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.