Mark 9:28

And he having come into the house, his disciples asked him apart, Wherefore were we not able to cast him forth?

Mark 7:17

And when he came into the house from the crowd, his disciples asked him of the parable.

Matthew 13:10

And the disciples having come near, said to him, Why speakest thou to them in parables?

Matthew 13:36

Then Jesus having dismissed the crowds, went into the house; and his disciples came to him, saying, Explain to us the parable of the tares of the field.

Matthew 15:15

And Peter, having answered, said to him, Explain to us this parable.

Matthew 17:19-20

Then the disciples having come to Jesus apart, said, Why could not we cast it out?

Mark 4:10

And when he was alone, they about him with the twelve asked him of the parable.

Mark 4:34

And without a parable spake he not to them: and apart, he solved all 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 about him with the twelve asked him of the parable.
Matthew 13:10
And the disciples having come near, said to him, Why speakest thou to them in parables?
Matthew 15:15
And Peter, having answered, said to him, Explain to us this parable.

Why

Matthew 17:19
Then the disciples having come to Jesus apart, said, Why could not we cast it out?

General references

2 Kings 20:10
And Hezekiah will say, A light thing to the shadow to bow ten steps: nay, for the shadow shall turn back-wards ten steps.
Matthew 17:19
Then the disciples having come to Jesus apart, said, Why could not we cast it out?
Mark 10:10
And again in the house, his disciples asked him of the same.