Luke 17:27

After having compared his second coming to lightning, in order to shew how sudden it will be, he next compares it to the days of Noe [Noah] and Lot, to shew that it will come when men least expect it; when, entirely forgetting his coming, they are solely occupied in the affairs of this world, in buying and selling, &c. He only mentions those faults which appear trivial, or rather none at all, (passing over the crimes of murder, theft, &c.) purposely to shew, that if God thus punishes merely the immoderate use of what is lawful, how will his vengeance fall upon what is in itself unlawful. (Ven. Bede)