Hebrews 12:25-26

25See to it that you do not refuse [to listen to] Him who is speaking [to you now]. For if those [sons of Israel] did not escape when they refused [to listen to] him who warned them on earth [revealing God’s will], how much less will we escape if we turn our backs on Him who warns from heaven?

26His voice shook the earth [at Mount Sinai] then, but now He has given a promise, saying, “Yet once more I will shake not only the earth, but also the [starry] heaven.”