In Zechariah 11, the prophet portrays himself as a shepherd hired to care for a flock destined for slaughter. He becomes disgusted with them and asks for his wages, which are contemptuously valued at thirty pieces of silver. This act is later echoed in the New Testament. What is the theological significance of this symbolic event in Zechariah 11, and how does its fulfillment in the New Testament deepen our understanding of Christ's role?