Matthew 24:37

But as the days of Noe were, so shall also the coming of the Son of man be.

Ver. 37. So shall the coming of the Son of man be] Sudden and unexpected. Luther observeth, that it was in the spring that the flood came, when everything was in its prime and pride, and nothing less looked for than a flood; men sinned securely, as if they had lived out of the reach of God's rod, but he found them out. Security is the certain usher of destruction; as at Laish, Ziklag. Before an earthquake the air will be most quiet, and when the wind lies the great rain falls. Frequentissimum initium calamitatis securitas, Carelessness is most often the beginning of a catastrophy, saith the historian, Paterculus.