Matthew 13:51
Jesus saith unto them, Have ye understood all these things?
Matthew 15:16-17
And Jesus said, Are ye also to this time destitute of intelligence?
Matthew 16:11
How is it that ye do not understand, that I spake not to you of bread, to beware of the leaven of the Pharisees and of the Sadducees?
Mark 4:13
And he saith to them, Know ye not this parable? and how will ye know all parables?
Luke 9:45
And they understood not that declaration, and it was hid from them, that they should not comprehend its meaning: and they were afraid to ask him concerning that saying.
Acts 8:30
Then Philip running up to him, heard him reading the prophet Isaiah; and he said, Well! but dost thou understand what thou art reading?