But the heavens and the earth, which are now, by the same word are kept in store, reserved unto fire against the day of judgment and perdition of ungodly men. But the heavens and the earth, which are now - The present earth and its atmosphere, which are liable to the same destruction, because the same means still exist, (for there is still water enough to drown the earth, and there is iniquity enough to induce God to destroy it and its inhabitants), are nevertheless kept in store, τεθησαυρισμενοι, treasured up, kept in God's storehouse, to be destroyed, not by water, but by fire at the day of judgment.
From all this it appears that those mockers affected to be ignorant of the Mosaic account of the formation of the earth, and of its destruction by the waters of the deluge; and indeed this is implied in their stating that all things continued as they were from the creation. But St. Peter calls them back to the Mosaic account, to prove that this was false; for the earth, etc., which were then formed, had perished by the flood; and that the present earth, etc., which were formed out of the preceding, should, at the day of judgment, perish by the fire of God's wrath.