Matthew 15:16
He said, "And are you totally ignorant?
Matthew 16:9
Do you not understand even yet? Do you not remember the five loaves of the five thousand and how many baskets you took up?
Matthew 13:51
Have you understood all this?" They said to him, "Yes."
Matthew 15:10
Then he called the crowd and said to them, "Listen, understand this:
Matthew 16:11
Why do you not see that I was not speaking to you about bread? No, beware of the leaven of the Pharisees and Sadducees."
Mark 6:52
for they had not understood the lesson of the loaves; their minds were dull.
Mark 7:18
He said to them, "So you do not understand, either? Do you not see how nothing outside a man can defile him by entering him?
Mark 8:17-18
He noted this and said to them, "Why do you argue you have no bread? Do you not see, do you not understand, even yet? Are you still dull of heart?
Mark 9:32
But they did not understand what he said, and they were afraid to ask him what he meant.
Luke 9:45
But they did not understand this saying ??indeed it was kept a secret from them, to prevent them from fathoming it ??and they were afraid to ask him about this saying.
Luke 18:34
However, they did not understand a word of this; indeed the saying was hidden from them, and they did not know what he meant.
Luke 24:45
Then he opened their minds to understand the scriptures.
Hebrews 5:12
Though by this time you should be teaching other people, you still need someone to teach you once more the rudimentary principles of the divine revelation. You are in need of milk, not of solid food.