A Prophecy of Jesus's Coming
Commentators overwhelmingly agree that this verse is a prophecy of the Messiah. While it encouraged the Jews rebuilding the temple, its ultimate fulfillment is in Jesus Christ. The promise "I will dwell in the midst of thee" is seen as pointing directly to the Incarnation, as described in John 1:14: "The Word was made Flesh and dwelt among us." This divine presence is the ultimate reason for Zion's joy.