Matthew 15:16
And He replied, "Are you still unable to understand?
Matthew 16:9
Do you not understand yet or remember that five thousand people [were fed] with five loaves of bread and how many baskets [of pieces] were picked up [afterward]?
Matthew 13:51
"Have you understood all these things?" [Jesus asked]. "Yes," they said to Him.
Matthew 15:10
Then Jesus called the crowds to come to Him, and He said to them, "Listen and understand.
Matthew 16:11
How is it that you do not understand that I was not speaking to you about [physical] bread? But [rather I meant] watch out for the yeast [i.e., the influence] of the Pharisees and Sadducees."
Mark 6:52
but they did not understand [the miracle] of the loaves because their minds were insensitive [i.e., to the nature and power of Jesus].
Mark 7:18
He said to them, "Are you also as lacking in understanding [as the others]? Do you not understand that whatever enters a person's body from the outside cannot [spiritually] corrupt him?
Mark 8:17-18
Jesus, being aware of what they were thinking, said, "Why are you reasoning about not having any bread? Have you not yet perceived or understood? Have your hearts become insensitive?
Mark 9:32
But His disciples did not understand what He meant and were afraid to ask Him.
Luke 9:45
But they did not understand what He was talking about, for it was hidden from them, so that they would not understand its meaning. And they were afraid to ask Him about what He had said.
Luke 18:34
But His disciples did not understand [what He meant by] any of these things, for this message was hidden from them so they did not comprehend what He was saying.
Luke 24:45
Then He opened their minds [miraculously ?] so they would understand the Scriptures.
Hebrews 5:12
For certainly enough time has elapsed so that [by now] you ought to be teachers, [but instead] you are in need of having someone teach you again the basic principles of God's message. You have become people who need "milk" and not "solid food." [Note: The fundamental truths of Christianity are here figuratively spoken of as "milk," while the more advanced teaching, such as Christ's priesthood being like Melchizedek's, is called "solid food"].