Mark 9:12-21

12Then He answered and told them, “Indeed, Elijah is coming first and restores all things. And how is it written concerning the Son of Man, that He must suffer many things and be treated with contempt?

13But I say to you that Elijah has also come, and they did to him whatever they wished, as it is written of him.”

14And when He came to the disciples, He saw a great multitude around them, and scribes disputing with them.

15Immediately, when they saw Him, all the people were greatly amazed, and running to Him, greeted Him.

16And He asked the scribes, “What are you discussing with them?”

17Then one of the crowd answered and said, “Teacher, I brought You my son, who has a mute spirit.

18And wherever it seizes him, it throws him down; he foams at the mouth, gnashes his teeth, and becomes rigid. So I spoke to Your disciples, that they should cast it out, but they could not.”

19He answered him and said, “O faithless generation, how long shall I be with you? How long shall I bear with you? Bring him to Me.”

20Then they brought him to Him. And when he saw Him, immediately the spirit convulsed him, and he fell on the ground and wallowed, foaming at the mouth.

21So He asked his father, “How long has this been happening to him?” And he said, “From childhood.