Matthew 13:51
Jesus asked, "Have you understood all these things?" "Yes," they said to him.
Matthew 13:11
And he answered them, "To you it has been given to know the secrets of the kingdom of heaven, but to them it has not been given.
Matthew 13:19
when anyone hears the word of the kingdom and does not understand it, the evil one comes and snatches away what was sown in his heart. This is the seed sown along the path.
Matthew 15:17
Do you not yet see that whatever enters the mouth goes into the stomach and is eliminated?
Matthew 16:11
How is it that you do not understand that I did not speak to you about bread? But beware of the leaven of the Pharisees and Sadducees."
Matthew 24:15
"So when you see standing in the holy place 'the abomination of desolation,' spoken of by the prophet Daniel (let the reader understand)
Mark 4:34
But without a parable he did not speak to them. And when they were alone, he explained everything to his own disciples.
Mark 7:18
So he said to them, "Are you also without understanding? Do you not see that whatever enters a man from outside cannot defile him,
Mark 8:17-18
Being aware of it, Jesus said to them, "Why do you discuss the fact that you have no bread? Do you not yet perceive or understand? Are your hearts hardened?
Luke 9:44-45
"Let these words sink into your ears, for the Son of Man is about to be betrayed into the hands of men."
Acts 8:30-31
So Philip ran up to him, and heard him reading Isaiah the prophet, and asked, "Do you understand what you are reading?"
1 John 5:20
And we know that the Son of God has come and has given us understanding, that we may know him who is true; and we are in him who is true, in his Son Jesus Christ. This is the true God and eternal life.