For Christians who are not familiar with Bible prophecy, the book of Ezekiel presents many things which are puzzling. But when all OT prophecies are taken into account, it fits right into the future of Israel after this is fulfilled: "all Israel shall be saved" (Rom 11:25).
Ezekiel's Temple will be the Millennial Temple in redeemed and restored Jerusalem. The prophecy of Ezekiel presents us with regathered, redeemed, and restored Israel in the Land of Promise (greater Israel extending from the Nile to the Euphrates) after the Second Coming of Christ. God Himself (with Christ) will commission the temple, and once it is complete, He will come to dwell in it for eternity.
Then he brought me back the way of the gate of the outward sanctuary which looketh toward the east; and it was shut. Then said the LORD unto me; This gate shall be shut, it shall not be opened, and no man shall enter in by it; because the LORD, the God of Israel, hath entered in by it, therefore it shall be shut... Then brought he me the way of the north gate before the house: and I looked, and, behold, the glory of the LORD filled the house of the LORD: and I fell upon my face.
(Ezek 44:1,2,4).
Scholars and Bible commentators are generally unable to reconcile the fact that even though the New Covenant has replaced the Old, there is a resumption of temple worship. Many have tried to allegorize and spiritualize away this prophecy, but honest interpretation and exegesis does not allow that. However if we keep in mind that God reveals all things in His good time, we should be able to take this prophecy in its plain literal sense.