How are we to understand the description of the heavens trembling and the earth being shaken out of its place?
What started as a description of the destruction of one nation leads to a description of the final judgment day. The entire created earth is in motion. We are not to understand this verse as necessarily demanding a literal fulfillment. Isaiah uses figurative language to help us understand the enormity of the coming judgment. This is how the wrath of the Lord burns. Everyone should fear the power of the Lord.
13 C'est pourquoi j'ébranlerai les cieux, Et la terre sera secouée sur sa base, Par la colère de l'Eternel des armées, Au jour de son ardente fureur.