Have.

Matthew 13:11, 19
He replied, "The knowledge of the mysteries of the kingdom of heaven has been given to you, but not to them. . . .

Matthew 15:17
"Do you not yet realize that whatever enters the mouth goes into the stomach and then is eliminated?

Matthew 16:11
How can you not understand that I was not telling you about bread? But beware of the yeast of the Pharisees and Sadducees."

Matthew 24:15
So when you see standing in the holy place 'the abomination of desolation, ' described by the prophet Daniel (let the reader understand),

Mark 4:34
He did not say anything to them without a parable. But privately He explained all things to His own disciples.

Mark 7:18
"Are you still so dull?" He asked. "Do you not understand? Nothing that enters a man from the outside can defile him,

Mark 8:17, 18
Aware of their conversation, Jesus asked them, "Why are you debating about having no bread? Do you still not see or understand? Do you have such hard hearts? . . .

Luke 9:44, 45
"Let these words sink into your ears: The Son of Man is about to be delivered into the hands of men." . . .

Acts 8:30, 31
So Philip ran up and heard the man reading Isaiah the prophet. "Do you understand what you are reading?" Philip asked. . . .

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.