Therefore the Jews were contending with one another, saying, "How can this Man give us His flesh to eat?"

Therefore many of His disciples, when they heard this, said, "This is a hard saying; who can hear it?"

What is this thing which He said, 'You will seek Me and you will not find [Me], and where I am you cannot come'?"

They did not know that He was speaking to them [about] the Father.

Why do you not understand what I say? Because you are unable to hear My word.

They know not, nor understand; they walk on in darkness; all the foundations of the earth shall be shaken.

Our fathers in Egypt understood not Your wonders, and remembered not the multitude of Your mercy; but provoked [Him] as they went up by the Red Sea.

Evil men will not understand judgment, but they that seek the Lord will understand everything.

You shall hear indeed, but you shall not understand; and you shall see indeed, but you shall not perceive.

For the heart of this people has become dull, and their ears are hard of hearing, and they have closed their eyes; lest they should see with their eyes, and hear with their ears, and understand with their heart, and be converted, and I should heal them.

Yea, they are insatiable dogs, that know not what it is to be filled, and they are wicked, having no understanding; all have followed their own ways, each according to his [will].

Many must be tested, and thoroughly whitened, and tried with fire, and sanctified; but the transgressors shall transgress: and none of the transgressors shall understand, but the wise shall understand.

Therefore I speak to them in parables, because seeing they do not see, and hearing they do not hear, nor do they understand.

And in them is fulfilled the prophecy of Isaiah, which says: 'Hearing you shall hear and by no means understand, and seeing you shall see and by no means perceive.

Jesus said to them, "Have you understood all these things?" They said to Him, "Yes, Lord."

But the natural man does not receive the things of the Spirit of God, for they are foolishness to him; nor can he know them, because they are spiritually discerned.

And we know that the Son of God has come and has given us an understanding, that we may know Him that is true; and we are in Him that is true, in His Son Jesus Christ. He is the true God and eternal life.