In Zechariah 11, the prophet portrays himself as a shepherd hired to tend a flock destined for slaughter. He is eventually paid thirty pieces of silver, which he then casts to the potter in the temple (Zechariah 11:12-13). How does the New Testament utilize this obscure prophetic act in Zechariah to illuminate the betrayal of Jesus by Judas Iscariot, and what does this parallel reveal about the prophetic nature of Jesus's suffering and the rejection of his kingship?