Mark 9:17-18

New King James Version

¹⁷ Then ^(A)one of the crowd answered and said, “Teacher, I brought You my son, who has a mute spirit. ¹⁸ And 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.”