they understood not.

John 6:52, 60
At this, the Jews began to argue among themselves, "How can this man give us His flesh to eat?" . . .

John 7:36
What does He mean by saying, 'You will look for Me, but you will not find Me, ' and, 'Where I am, you cannot come'?"

John 8:27, 43
They did not understand that He was telling them about the Father. . . .

Psalm 82:5
They do not know or understand; they wander in the darkness; all the foundations of the earth are shaken."

Psalm 106:7
Our fathers in Egypt did not grasp Your wonders or remember Your abundant kindness; but they rebelled by the sea, there at the Red Sea.

Proverbs 28:5
Evil men do not understand justice, but those who seek the LORD comprehend fully.

Isaiah 6:9, 10
And He replied, "Go and tell this people: 'Be ever hearing, but never understanding; be ever seeing, but never perceiving.' . . .

Isaiah 56:11
Like ravenous dogs, they are never satisfied. They are shepherds with no discernment; they all turn to their own way, each one seeking his own gain:

Daniel 12:10
Many will be purified, made spotless, and refined, but the wicked will continue to act wickedly. None of the wicked will understand, but the wise will understand.

Matthew 13:13, 14, 51
This is why I speak to them in parables: 'Though seeing, they do not see; though hearing, they do not hear or understand.' . . .

1 Corinthians 2:14
The natural man does not accept the things that come from the Spirit of God. For they are foolishness to him, and he cannot understand them, because they are spiritually discerned.

1 John 5:20
And we know that the Son of God has come and has given us understanding, so that we may know Him who is true; and we are in Him who is true--in His Son Jesus Christ. He is the true God and eternal life.