John 13:12

So when he had washed their feet, put his outer garment back on, and sat down again, he said to them, "Do you know what I have done to you?

John 13:7

Jesus answered him, "You don't know what I am doing now, but you will understand later."

Ezekiel 24:19

The people said to me, Won't you tell us what these things are to us, that you do so?

Ezekiel 24:24

Thus Ezekiel shall be a sign to you; according to all that he has done, you will do. When this comes, then you will know that I am the Lord Yahweh.

Matthew 13:51

Jesus said to them, "Have you understood all these things?" They answered him, "Yes, Lord."

Mark 4:13

He said to them, "Don't you understand this parable? How will you understand all of the parables?

John 13:4

arose from supper, and laid aside his outer garments. He took a towel, and wrapped a towel around his waist.

Treasury of Scripture Knowledge

Summary

So after he had washed their feet, and had taken his garments, and was set down again, he said unto them, Know ye what I have done to you?

Bible References

Know

John 13:7
Jesus answered him, "You don't know what I am doing now, but you will understand later."
Ezekiel 24:19
The people said to me, Won't you tell us what these things are to us, that you do so?
Matthew 13:51
Jesus said to them, "Have you understood all these things?" They answered him, "Yes, Lord."
Mark 4:13
He said to them, "Don't you understand this parable? How will you understand all of the parables?