6:14 The heaven departed. The old religions, supposed to be of heavenly origin, pass away.
Every mountain and island were moved. Mountain and island are used to denote earthly rulers and kingdoms, the latter referring more especially to European provinces which are often called the isles of the sea in the Bible (Es 10:1 Isa 24:15). From the period of Diocletian, the great persecutor, the title Your Eminence, or, in other words, mountain, was bestowed upon princes. As a mountain stood above the plain, so the rulers of the earth were exalted.
6:14 And the heavens departed as a book that is rolled together - When the scripture compares some very great with a little thing, the majesty and omnipotence of God, before whom great things are little, is highly exalted. Every mountain and island - What a mountain is to the land, that an island is to the sea.
6:12-17 When the sixth seal was opened, there was a great earthquake. The foundations of churches and states would be terribly shaken. Such bold figurative descriptions of great changes abound in the prophecies of Scripture; for these events are emblems, and declare the end of the world and the day of judgment. Dread and terror would seize on all sorts of men. Neither grandeur, riches, valour, nor strength, can support men at that time. They would be glad to be no more seen; yea, to have no longer any being. Though Christ be a Lamb, he can be angry, and the wrath of the Lamb is exceedingly dreadful; for if the Redeemer himself, who appeases the wrath of God, be our enemy, where shall we find a friend to plead for us? As men have their day of opportunity, and their seasons of grace, so God has his day of righteous wrath. It seems that the overthrow of the paganism of the Roman empire is here meant. The idolaters are described as hiding themselves in their dens and secret caves, and vainly seeking to escape ruin. In such a day, when the signs of the times show those who believe in God's word, that the King of kings is approaching, Christians are called to a decided course, and to a bold confession of Christ and his truth before their fellowmen. Whatever they may have to endure, the short contempt of man is to be borne, rather than that shame which is everlasting.
