736. As for Noah, or the member of this new Church, he was such that he believed with simplicity those things which he had come to possess from the Most Ancient Church. These were items of doctrine that had been gathered together and converted into a kind of doctrinal form by those called Enoch. The disposition of the people meant by Noah however was entirely different from those before the Flood who perished, called the Nephilim. For they immersed doctrinal matters concerning faith in their own filthy desires and in this way strove after dreadful persuasions from which they were unwilling to draw back even though they were taught by others and were shown that these were falsities. This dual genius or disposition also exists among people today. The former can be regenerated easily, but the latter with difficulty.
Day and Night
In Genesis 8:22, this signifies the alternating states in intellectual matters of a regenerate person. (Arcana Coelestia 936)
In Isaiah 13:6 and Jeremiah 6:4, this stands for the state associated with that particular time. (Arcana Coelestia 23, 487)