'Understand' in the Bible

Jesus answered and said to him, "Are you the teacher of Israel, and you do not understand these [things]?

Thus many of his disciples, [when they] heard [it], said, "This saying is hard! Who can understand it?"

{Why} do you not understand my way of speaking? Because you are not able to listen to my message.

Jesus told them this parable, but they did not understand what it was that he was saying to them.

But if I am doing [them], even if you do not believe me, believe the deeds, so that you may know and understand that the Father [is] in me and I [am] in the Father."

(His disciples did not understand these [things] at first, but when Jesus was glorified, then they remembered that these [things] had been written about him and they did these [things] to him.)

"He has blinded their eyes and hardened their hearts, lest they see with [their] eyes and understand with [their] hearts and turn, and I heal them."

Jesus answered and said to him, "What I am doing you do not understand now, but you will understand after these [things]."

So when he had washed their feet and taken his outer clothing and reclined at table again, he said to them, "Do you understand what I have done for you?

If you understand these [things], you are blessed if you do them.

So they kept on saying, "What is this that he is saying, 'A little [while]'? We do not understand what he is speaking about!"

Now they understand that all [the things] that you have given me are from you,