Matthew 17:9–21
9 Now as they came down from the mountain, Jesus commanded them, saying, “Tell the vision to no one until the Son of Man is risen from the dead.”
10 And His disciples asked Him, saying, h“Why then do the scribes say that Elijah must come first?”
11 Jesus answered and said to them, “Indeed, Elijah is coming 2first and will irestore all things. 12 jBut I say to you that Elijah has come already, and they kdid not know him but did to him whatever they wished. Likewise lthe Son of Man is also about to suffer at their hands.” 13 mThen the disciples understood that He spoke to them of John the Baptist.
14 nAnd when they had come to the multitude, a man came to Him, kneeling down to Him and saying, 15 “Lord, have mercy on my son, for he is 3an epileptic and suffers severely; for he often falls into the fire and often into the water. 16 So I brought him to Your disciples, but they could not cure him.”
17 Then Jesus answered and said, “O 4faithless and operverse generation, how long shall I be with you? How long shall I bear with you? Bring him here to Me.” 18 And Jesus prebuked the demon, and it came out of him; and the child was cured from that very hour.
19 Then the disciples came to Jesus privately and said, “Why could we not cast it out?”
20 So Jesus said to them, “Because of your 5unbelief; for assuredly, I say to you, qif you have faith as a mustard seed, you will say to this mountain, ‘Move from here to there,’ and it will move; and nothing will be impossible for you. 21 6However, this kind does not go out except by prayer and fasting.”