Mark 9:19-21

Revised Standard Version Catholic Edition

¹⁹ And he answered them, “O faithless generation, how long am I to be with you? How long am I to bear with you? Bring him to me.” ²⁰ And they brought the boy to him; and when the spirit saw him, immediately it convulsed the boy, and he fell on the ground and rolled about, foaming at the mouth. ²¹ And Jesus^[a] asked his father, “How long has he had this?” And he said, “From childhood.