Mark 4:11
And he said to them, To you it is given to know the mystery of the kingdom of God: but to them that are without, all things are in parables:
Matthew 13:10-17
And the disciples came and said to him, Why speakest thou to them in parables?
Matthew 13:34-35
All these things spake Jesus to the multitude in parables, and without a parable spake he not unto them:
Matthew 13:51-52
Jesus saith to them, Have ye understood all these things? They say to him, Yea, Lord.
Mark 4:34
But without a parable spake he not to them: and in private he expounded all things to his disciples.
Acts 8:30-31
And Philip running to him, heard him read the prophet Isaiah, and said, Understandest thou what thou readest?
Hebrews 5:14
But strong meat belongeth to them of full age, to them who have their senses exercised by habit to discern both good and evil.
2 Peter 3:16
As also in all his epistles, speaking therein of these things, in which are some things hard to be understood, which the unlearned and unstable wrest, as they do also the other scriptures, to their own destruction.