Matthew 17:19

Then the disciples, coming to Jesus apart, said to him, Why were not we able to cast him out?

And when he was alone, those about him with the twelve asked him as to the parables.

And when he was entered into the house, his disciples asked him privately, Wherefore could not we cast him out?

Treasury of Scripture Knowledge

Then came the disciples to Jesus apart, and said, Why could not we cast him out?

And when he was alone, those about him with the twelve asked him as to the parables.

And when he was entered into the house, his disciples asked him privately, Wherefore could not we cast him out?