Bede : At that time the world perished, being flooded by water. At that time, referring to the heavens and the earth which he had previously mentioned. For through these things the world that had existed was destroyed. For the higher parts of the world were in no way touched by the flood. Therefore the earth perished, because being submerged and covered by waters, it not only lost the state of fruitfulness inherent to it for such a long time, but also, as we have taught above, in many places it received a different face from that which it had initially. The heavens likewise perished to the extent of this airspace. "For the water increased," as Saint Augustine says, "and occupied this entire space where birds fly." And thus certainly the heavens close to the earth perished, as it is said "the birds of the heavens." But there are also (he says) the heavens of the heavens higher in the firmament, but whether they too are to perish by fire, or if only these which perished by the flood will do so, is a rather more precise debate among the learned. — Commentary on the Catholic Epistles