Matthew 13:51
Then saith Jesus unto them, Did ye understand all these? they say unto Him, Yes, Lord: and He said unto them,
Matthew 15:16-17
And Jesus replied, Are ye also still void of understanding?
Matthew 16:11
How is it then that ye do not understand that I did not speak to you concerning bread, when I bid you to beware of the leaven of the pharisees and of the sadducees?
Mark 4:13
Then saith He unto them, Do ye not understand this parable? how then will ye understand all my other parables.
Luke 9:45
But they understood not this saying, and it was hid from them, so that they perceived it not, and they were afraid to ask Him concerning it.
Acts 8:30
heard him reading the prophet Esaias, and said, Dost thou understand what thou readest?