Charles Ellicott Commentary Hebrews 12:27

"And this [word], Yet once more, signifieth the removing of those things that are shaken, as of things that have been made, that those things which are not shaken may remain." — Hebrews 12:27 (ASV)

This word, Yet once more, is equivalent to once more only; and the words “once more only will I move the heaven and the earth” must necessarily point to the final change, which results in the removal of everything that can pass away.

Which cannot be shaken.—Literally, which are not shaken. The great difficulty of the verse is to ascertain on what word this clause depends.

1. If it depends upon “removing,” the sense will be: This word signifies the removing of the things made (as being created things), so that the things not shaken may remain. The next verse throws light on the writer’s meaning; there, what “cannot be shaken” is the kingdom which we receive: he is not speaking of what belongs to a material creation.
2. The other view can only be briefly mentioned: This word signifies the removing of the things shaken, as of things that have been made, so that the things not shaken may remain.

The idea is striking—that created things were made for the very purpose of giving way to what will endure; but the other view seems to offer the more probable meaning of the verse.