This Kingdom cannot be shaken

Scripture from Haggai 2:6-9:

For thus says the LORD of hosts: Yet once more, in a little while, I will shake the heavens and the earth and the sea and the dry land. And I will shake all nations, so that the treasures of all nations shall come in, and I will fill this house with glory, says the LORD of hosts. The silver is mine, and the gold is mine, declares the LORD of hosts. The latter glory of this house shall be greater than the former, says the LORD of hosts. And in this place I will give peace, declares the LORD of hosts.’”

One of the many great things that the apostles gave us in their writing of the New Testament was a translation of numerous pivotal Old Testament passages. One such instance is the translation offered up by the author of Hebrews on the Scripture mentioned above. See what is said here in Hebrews 12:18-29, where the author first establishes the relationship and ultimate contrast between the old and new covenants. The particular scenario brought up here is from Exodus 19, where God's speech shakes the mountain, and the people of Israel all tremble with fear:

For you have not come to what may be touched, a blazing fire and darkness and gloom and a tempest and the sound of a trumpet and a voice whose words made the hearers beg that no further messages be spoken to them. For they could not endure the order that was given, “If even a beast touches the mountain, it shall be stoned.” Indeed, so terrifying was the sight that Moses said, “I tremble with fear.” But you have come to Mount Zion and to the city of the living God, the heavenly Jerusalem, and to innumerable angels in festal gathering, and to the assembly of the firstborn who are enrolled in heaven, and to God, the judge of all, and to the spirits of the righteous made perfect, and to Jesus, the mediator of a new covenant, and to the sprinkled blood that speaks a better word than the blood of Abel. - (Hebrews 12:18-24)

The author has established the contrast - we who live and receive this word from the New Testament do not find ourselves in the same situation as the Israelites did at the foot of Mt. Sinai that dreadful day the LORD descended. We have come to the true heavenly Jerusalem (this contrast between Sinai and Zion is teased out again in Galatians 4:21-31 by Paul), to the assembly of the firstborn from the dead. This is the true Kingdom that cannot be shaken - not a typological, theocratic kingdom established temporarily on earth. See what the author concludes with in the last few verses:

At that time his voice shook the earth, but now he has promised, “Yet once more I will shake not only the earth but also the heavens.” This phrase, “Yet once more,” indicates the removal of things that are shaken—that is, things that have been made—in order that the things that cannot be shaken may remain. Therefore let us be grateful for receiving a kingdom that cannot be shaken, and thus let us offer to God acceptable worship, with reverence and awe, for our God is a consuming fire. - (Hebrews 12:26-29)

The Kingdom that cannot be shaken is our inheritance. It is established through God's fiery judgment of this world. Through the shaking of things that have been made, the kingdom that cannot be shaken comes to consummation. To conclude these wonderful revelations, the author says that since we now know and understand these things, we are to offer acceptable, reverent worship to the God who sovereignly causes all this to come to pass. Today, we see through a glass dimly, but soon we shall see this kingdom where the treasures of all nations have come in, the house is filled with the glory of the Lord, and a reign of peace is established without end.