Mark 9:9-10

9:9 As they were coming down from the mountain, he gave them orders not to tell anyone what they had seen until after the Son of Man had risen from the dead. 9:10 They kept this statement to themselves, discussing what this rising from the dead meant.

Mark 9:31-32

9:31 for he was teaching his disciples and telling them, “The Son of Man will be betrayed into the hands of men. They will kill him, and after three days he will rise.” 9:32 But they did not understand this statement and were afraid to ask him.