“The desired of all nations will come.” The desired of the nations is the Messiah. Haggai does not say or imply that the coming of the Messiah will be in two stages, a first coming in which he is killed and a second coming in which he conquers the earth and sets up his kingdom. Haggai focuses on the Tribulation, which is the major subject of the book of Revelation, and Christ’s second coming at which time he will conquer the earth and set up his kingdom, including filling the temple with glory. What Haggai did not mention was that the temple that was being rebuilt in his time would be destroyed, and when Jesus came back he would build another temple which would be filled with glory (Zech. 6:12-13; Ezek. 40-47).
[For more on Christ setting up a kingdom on earth, see Appendix 3, “Christ’s Future Kingdom on Earth”].