Hebrews 12:26

At that time His voice shook the earth, but now He has promised, “Once more I will shake not only the earth, but heaven as well.”

Note Haggai 2:6

Whose voice then shook the earth: but now he hath promised, saying, Yet once more I shake not the earth only, but also heaven.

whose voice shook the earth then, but now he has promised, saying, “Yet once more I will shake not only the earth, but also the heavens.”

whose voice then shook the earth: but now he hath promised, saying, Yet once more will I make to tremble not the earth only, but also the heaven.