John 2:20 KJV

Then said the Jews, Forty and six years was this temple in building, and wilt thou rear it up in three days?
John 2:20, King James Version

In context

19 Jesus answered and said unto them, Destroy this temple, and in three days I will raise it up.

20 Then said the Jews, Forty and six years was this temple in building, and wilt thou rear it up in three days?

21 But he spake of the temple of his body.