In Zechariah 11:12, it sounds as if Christ was the one that was speaking. (12) And I said unto them, If ye think good, give me my price; and if not, forbear, So they weighed for my price Thirty Pieces of silver. (13)And the Lord said unto me, Cast it unto the potter: a goodly price that I was prised at of them. And I took the thirty pieces of silver, and cast them to the potter in the house of the Lord.

It sounds as if Christ and the thirty pieces of silver were foretold in the book of Zechariah, and it did come to pass in the new testament. In Matthew 26:15, Judas was paid 30 silver coins for his betrayal of Jesus.