Mark 9:28

And when he was come into the house, his disciples asked him secretly, "Why could not we cast him out?"

Mark 7:17

And when he came into a house away from the people, his disciples asked him of the similitude,

Matthew 13:10

And the disciples came, and said to him, "Why speakest thou to them in parables?"

Matthew 13:36

Then sent Jesus the people away, and came to house. And his disciples came unto him, saying, "Declare unto us the similitude of the tares in the field."

Matthew 15:15

Then answered Peter and said to him, "Declare unto us this parable."

Matthew 17:19-20

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

Mark 4:10

And when he was alone, they that were about him with the twelve asked him of the similitude.

Mark 4:34

And without similitude spake he nothing unto them. But when they were apart, he expounded all things to his disciples.

Treasury of Scripture Knowledge

Summary

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

Bible References

Asked

Mark 4:10
And when he was alone, they that were about him with the twelve asked him of the similitude.
Matthew 13:10
And the disciples came, and said to him, "Why speakest thou to them in parables?"
Matthew 15:15
Then answered Peter and said to him, "Declare unto us this parable."

Why

Matthew 17:19
Then came the disciples to Jesus secretly, and said, "Why could not we cast him out?"

General references

2 Kings 20:10
And Hezekiah said, "It is a light thing for the shadow to go down ten degrees. Therefore I will not that: but let the shadow go backward ten degrees."
Matthew 17:19
Then came the disciples to Jesus secretly, and said, "Why could not we cast him out?"
Mark 10:10
And in the house his disciples asked him again of that matter.