Mark 4:11
And he said: "To you the hidden truth of the Kingdom of God has been imparted; but to those who are outside it all teaching takes the form of parables, that--
Matthew 13:10-17
Afterwards his disciples came to him, and said: "Why do you speak to them in parables?"
Matthew 13:34-35
Of all this Jesus spoke to the crowd in parables; indeed to them he used never to speak at all except in parables,
Matthew 13:51-52
Have you understood all this?" Jesus asked. "Yes," they answered.
Mark 4:34
And to them he never used to speak except in parables; but in private to his own disciples he explained everything.
Acts 8:30-31
So Philip ran up, and he heard the Abyssinian reading the Prophet Isaiah. "Do you understand what you are reading?" he asked.
Hebrews 5:14
But 'solid food' is for Christians of mature faith--those whose faculties have been trained by practice to distinguish right from wrong.
2 Peter 3:16
It is the same in all his letters, when he speaks in them about these subjects. There are some things in them difficult to understand, which untaught and weak people distort, just as they do all other writings, to their own Ruin.