Matthew 13:51
Jesus saith to them, Have ye understood all these things? They say to him, Yea, Lord.
Matthew 15:16-17
And Jesus said, Are ye also yet without understanding?
Matthew 16:11
How do ye not understand, that I spake not to you concerning bread, to beware of the leaven of the Pharisees and Saducees?
Mark 4:13
And he saith to them, Know ye not this parable? How then will ye know all parables?
Luke 9:45
But they understood not this saying, and it was hid from them, so that they perceived it not: and they feared to ask him of this saying.
Acts 8:30
And Philip running to him, heard him read the prophet Isaiah, and said, Understandest thou what thou readest?