My Morning Cup.

Zechariah 11:12-13 (more Messianic prophecy!)
I told them, “If you think it best, give me my pay; but if not, keep it.” So they paid me thirty pieces of silver.
 And the LORD said to me, “Throw it to the potter”—the handsome price at which they valued me! So I took the thirty pieces of silver and threw them to the potter at the house of the LORD.

Matthew 27:3-7 (500 years later)
When Judas, who had betrayed him, saw that Jesus was condemned, he was seized with remorse and returned the thirty pieces of silver to the chief priests and the elders.  “I have sinned,” he said, “for I have betrayed innocent blood.”
   “What is that to us?” they replied. “That’s your responsibility.”
 So Judas threw the money into the temple and left. Then he went away and hanged himself.
 The chief priests picked up the coins and said, “It is against the law to put this into the treasury, since it is blood money.” So they decided to use the money to buy the potter’s field as a burial place for foreigners.

30 pieces of silver was also the price of a slave (Exodus 21:32).