²⁵ See to it that you do not ignore the one who is speaking. For if the hearers^[a] did not escape when they ignored the one who warned them on earth, how much less will we escape^[b] if we turn away from the one who is from heaven! ²⁶ At that time his voice shook the earth, but now he has promised, “Once more I will shake not only the earth but also heaven.”^{[c] 27} The expression “once more”^[d] signifies the removal of what can be shaken, that is, what he has made, so that what cannot be shaken may remain. ²⁸ Therefore, since we are receiving a kingdom that cannot be shaken, let us be thankful and worship God in reverence and fear in a way that pleases him. ²⁹ For “our God is an all-consuming fire.”^[e]