Matthew 13:51
Have you understood all these things? They said to him: Yes.
Matthew 13:11
He responded: You are allowed to know the divine secrets of the kingdom of heaven, but it is not for others to know. (The Greek word for you is plural and is applied to the disciples as a group.)
Matthew 13:19
When anyone hears the word of the kingdom and does not understand, the evil one takes away that which was sown in his heart. This is what was sown by the roadside.
Matthew 15:17
Do you not see, that which goes into the mouth, goes into the stomach and is sent out as waste?
Matthew 16:11
Why do you not understand I was not talking about bread? Instead, about keeping away from the leaven of the Pharisees and Sadducees?
Matthew 24:15
When you see the disgusting abomination of desolation (unclean thing) spoken about through Daniel the prophet, standing in the holy place (let him that reads understand),
Mark 4:34
He spoke only with illustrations. However he made all things clear to his disciples in private.
Mark 7:18
He replied: Do you not understand? Do you not know that which goes into the man from the outside cannot defile him?
Mark 8:17-18
Hearing this Jesus said: Why do you reason about having no bread? Do you not understand? Are your hearts dull of understanding?
Luke 9:44-45
Let these words sink into your ears. The Son of man shall be delivered up into the hands of men.
Acts 8:30-31
Philip ran to him, heard him read the prophet Isaiah, and said: Do you understand what you are reading?
1 John 5:20
We know that the Son of God has come and has given us understanding. We know him that is true for we are in him who is true, [and] in his Son Jesus Christ. This is the true God and everlasting life.