Matthew 13:51
Jesus said to them: Have you understood all these things? They said to him: Yes, Lord.
Matthew 13:11
He answered, and said to them: Because it is given to you to know the mysteries of the kingdom of heaven; but to them it is not given.
Matthew 13:19
When any one hears the word of the kingdom, and understands it not, the wicked one comes and catches away that which was sown in his heart. This is he that received seed by the way side.
Matthew 15:17
Do you not yet understand that whatever enters the mouth passes into the belly, and is cast out into the sink?
Matthew 16:11
How is it that you do not understand, that I did not speak of bread when I commanded you to beware of the leaven of the Pharisees and of the Sadducees?
Matthew 24:15
When, therefore, you see that detestable thing that makes desolate, spoken of by Daniel the prophet, standing in the holy place, (let him that reads understand;)
Mark 4:34
But without a parable he did not speak to them; but when alone, he explained all things to his disciples.
Mark 7:18
And he said to them: Are you also so void of understanding? Do you not perceive that nothing from without, by entering into a man, can defile him?
Mark 8:17-18
And Jesus perceived it, and said to them: Why do you reason, because you have no bread? Do you not yet perceive, nor understand? Is your heart still hardened?
Luke 9:44-45
Let these words sink into your ears; for the Son of man is about to be delivered into the hands of men.
Acts 8:30-31
And Philip ran forward, and heard him reading the prophet Isaiah; and he said: 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 that is true: and we are in him that is true, in his Son Jesus Christ. This is the true God, and life eternal. Little children, keep yourselves from idols.