Mark 4:34

and to them it was his practice never to speak except in parables. But he used to explain everything in private to his disciples.

John 16:25

"I have told you these things in figures; but the time is coming when I shall no longer speak in figures, but will tell you about the Father in plain words.

Matthew 13:36-43

After he had sent the people away and gone into the house, his disciples came to him and said, "Explain to us the parable about the weeds in the field."

Matthew 15:15-20

Then Peter said to Jesus, "Explain the parable to us."

Mark 4:10

When he was alone his followers and the Twelve began asking about the parables.

Luke 24:27

And beginning with Moses and the Prophets, he interpreted all the passages concerning himself.

Mark 7:17-23

After he had left the crowd and gone indoors his disciples began asking him about the parable.

Luke 8:9-10

Then his disciples began to interrupt him, saying, "What does this parable mean?"

Luke 24:44-46

Then he said to them, "These are my words which I spoke to you while I was still with you, how all things must be fulfilled which are written in the Law of Moses, and the prophets, and the Psalms concerning me."

Treasury of Scripture Knowledge

Summary

But without a parable spake he not unto them: and when they were alone, he expounded all things to his disciples.

Bible References

When

Mark 4:10
When he was alone his followers and the Twelve began asking about the parables.
Mark 7:17
After he had left the crowd and gone indoors his disciples began asking him about the parable.
Matthew 13:36
After he had sent the people away and gone into the house, his disciples came to him and said, "Explain to us the parable about the weeds in the field."
Matthew 15:15
Then Peter said to Jesus, "Explain the parable to us."
Luke 8:9
Then his disciples began to interrupt him, saying, "What does this parable mean?"
Luke 24:27
And beginning with Moses and the Prophets, he interpreted all the passages concerning himself.

General references

Matthew 13:34
Jesus told all this to the crowd in parables; indeed he never spoke to them except in parables,
Matthew 22:1
Once more Jesus answered them in parables.
Mark 4:10
When he was alone his followers and the Twelve began asking about the parables.
Mark 7:17
After he had left the crowd and gone indoors his disciples began asking him about the parable.