Mark 4:34

and He did not say anything to them without [using] a parable; He did, however, explain everything privately to His own disciples.

John 16:25

“I have told you these things in figurative language (veiled language, proverbs); the hour is now coming when I will no longer speak to you in figures of speech, but I will tell you plainly about the Father.

Matthew 13:36-43

Then He left the crowds and went into the house. And His disciples came to Him saying, “Explain [clearly] to us the parable of the weeds in the field.”

Matthew 15:15-20

Peter asked Him, “Explain this parable [about what defiles a person] to us.”

Mark 4:10

As soon as He was alone, those who were around Him, together with the twelve [disciples], began asking Him about [the interpretation of] the parables.

Luke 24:27

Then beginning with Moses and [throughout] all the [writings of the] prophets, He explained and interpreted for them the things referring to Himself [found] in all the Scriptures.

Mark 7:17-23

When Jesus had left the crowd and gone into the house, His disciples asked Him about the parable.

Luke 8:9-10

Now His disciples began asking Him what this parable meant.

Luke 24:44-46

Then He said to them, “This is what I told you while I was still with you, everything which has been written about Me in the Law of Moses and the [writings of the] Prophets and the Psalms must be fulfilled.”

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
As soon as He was alone, those who were around Him, together with the twelve [disciples], began asking Him about [the interpretation of] the parables.
Mark 7:17
When Jesus had left the crowd and gone into the house, His disciples asked Him about the parable.
Matthew 13:36
Then He left the crowds and went into the house. And His disciples came to Him saying, “Explain [clearly] to us the parable of the weeds in the field.”
Matthew 15:15
Peter asked Him, “Explain this parable [about what defiles a person] to us.”
Luke 8:9
Now His disciples began asking Him what this parable meant.
Luke 24:27
Then beginning with Moses and [throughout] all the [writings of the] prophets, He explained and interpreted for them the things referring to Himself [found] in all the Scriptures.

General references

Ezekiel 17:2
“Son of man, ask a riddle and tell a parable to the house of Israel,
Matthew 13:34
All these things Jesus said to the crowds in parables, and He said nothing to them without [using] a parable.
Matthew 22:1
Jesus spoke to them again in parables, saying,
Mark 4:10
As soon as He was alone, those who were around Him, together with the twelve [disciples], began asking Him about [the interpretation of] the parables.
Mark 7:17
When Jesus had left the crowd and gone into the house, His disciples asked Him about the parable.