16 Then Jesus answered and said: O unbelieving and perverse generation, how long shall I be with you? How long shall I suffer you? bring him hither to me.
17 And Jesus rebuked him, and the devil went out of him, and the child was cured from that hour.
18 Then came the disciples to Jesus secretly, and said: Why could not we cast him out?
19 Jesus said to them: Because of your unbelief. For, amen I say to you, if you have faith as a grain of mustard seed, you shall say to this mountain, Remove from hence hither, and it shall remove; and nothing shall be impossible to you.
20 But this kind is not cast out but by prayer and fasting.
21 And when they abode together in Galilee, Jesus said to them: The Son of man shall be betrayed into the hands of men:
22 And they shall kill him, and the third day he shall rise again. And they were troubled exceedingly.