Bible Verses About Reproof: Not understanding

Do you still not understand? Do you not remember the five loaves for the five thousand, and how many basketfuls you gathered?

How do you not understand that I was not telling you about bread? But beware of the leaven of the Pharisees and Sadducees.”

“Are you still so dull?” He asked. “Do you not understand? Nothing that enters a man from the outside can defile him,

Then Jesus said to them, “O foolish ones, how slow are your hearts to believe all that the prophets have spoken!

Why do you not understand what I am saying? It is because you are unable to accept My message.

Jesus replied, “You do not realize now what I am doing, but later you will understand.”

“Never shall You wash my feet!” Peter told Him. Jesus answered, “Unless I wash you, you have no part with Me.”