The prophet Zechariah contains several messianic prophecies, including the prophecy of the coming king riding on a donkey (Zechariah 9:9) and the piercing of the one they have pierced (Zechariah 12:10). While the fulfillment of Zechariah 9:9 is readily associated with Jesus' triumphal entry into Jerusalem, how does the prophecy of Zechariah 12:10 contribute to a more profound understanding of the atoning work of Christ?