25 See that you do not refuse him who is speaking. For if they did not escape when they refused him who warned them on earth, much less will we escape if we reject him who warns from heaven. 26 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.” 27 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. 28 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, 29 for our God is a consuming fire. (Hebrews 12:25-29)
Listen to the Lord (25): The warning to his readers is not to disregard the words from the Lord spoken from heaven. The Exodus generation failed to heed the warning (on earth) at the giving of the law and suffered 40 years in the desert. The same will happen to the present generation of believers who do not act on, or persevere, in their faith and respond to the warning given by the Son from heaven (1:1-2). The warning is against apostasy, turning back from the truth they had heard.
Shaken (26-27): The Lord’s voice shook the earth at Mount Sinai to emphasize the importance of the law. But in the future, there will be a final shaking involving not only the earth but all creation and that which will be shaken will be removed. There will be no escape from this shaking. This is drawn from Haggai 2:6 and refers to the time following the millennial kingdom and the creation of a new heaven and earth.
The Unshakable (28-29): The author urges believers to give thanks to the Lord and reflect in amazement that God, who is a consuming fire, has brought them into his kingdom; a kingdom that cannot be shaken nor destroyed by fire (See 2 Peter 3:10).
Challenge: Have you heard “the Voice”? Are you steadfast in the faith? Are you a part of the community that will not be shaken?
Out of Christ, God is a consuming fire. In Christ God is a reconciling Father. Matthew Henry