Mark 9:31

28 And when he was come into the house, his disciples asked him privately, [How is it] that we could not cast it out?

29 And he said unto them, This kind can come out by nothing, save by prayer.

30 And they went forth from thence, and passed through Galilee; and he would not that any man should know it.

31 For he taught his disciples, and said unto them, The Son of man is delivered up into the hands of men, and they shall kill him; and when he is killed, after three days he shall rise again.

32 But they understood not the saying, and were afraid to ask him.

33 And they came to Capernaum: and when he was in the house he asked them, What were ye reasoning on the way?

34 But they held their peace: for they had disputed one with another on the way, who [was] the greatest.