Hebrews 12:26-28

12:26 Then his voice shook the earth, but now he has promised, “I will once more shake not only the earth but heaven too.” ¹  12:27 Now this phrase “once more” indicates the removal of what is shaken, that is, of created things, so that what is unshaken may remain. 12:28 So since we are receiving an unshakable kingdom, let us give thanks, and through this let us offer worship pleasing to God in devotion and awe.

[12:26]  ¹ sn A quotation from Hag 2:6.