Luke 20:3

He answered and said unto them, "I also will ask you a question: and answer me.

"Why do thy disciples transgress the traditions of the elders? For they wash not their hands, when they eat bread."

And if also I ask you, ye will not answer me, or let me go.

Let your speech be always well favoured and be powdered with salt, that ye may know how to answer every man.

Treasury of Scripture Knowledge

And he answered and said unto them, I will also ask you one thing; and answer me:

And if also I ask you, ye will not answer me, or let me go.