At that time his voice shook the earth, but now he has promised, ‘Once more I will shake not only the earth but also the heavens.’ 27 The words ‘once more’ indicate the removing of what can be shaken – that is, created things – so that what cannot be shaken may remain.

Nothing pertaining to God’s Kingdom is shakeable! Those who build on Jesus’ Words erect their lives upon an unshakeable foundation (Matthew 7:24-27). But everything that can be shaken is one day going to be, before the unshakeable Kingdom comes in its fullness.

Tom Wright says that the really worrying thing in today’s passage is that God Himself is going to do this ”as part of his plan to take his creation by the scruff of the neck and make it, at last, what he always intended it would be.’‘ ‘Hebrews for Everyone’, p.164.

It will involve not only an earthquake, but, so to speak, a ”heavenquake”, as God brings in a whole new universe.