1335. That 'two years after the Flood' means the second Church after the Flood becomes clear from the fact that in the Word 'a year', as also 'a day' and 'a week', means an entire period, long or short, consisting of few or of many years. Indeed it means a period considered in the abstract, as may be seen from the places quoted already in 488, 893. The same applies here to 'two years after the Flood', which means the second period of the Church, which was when this second Ancient Church came into being.

The number three in the Bible represents completeness. That's why Jesus rose on the third day after the Crucifixion -- his transformation was complete. It's why Elijah stretched himself on the dead child three times, why Jonah was in the belly of the fish for three days, why the Lord called Samuel three times, and many more. It's also reflected in the fact that there are three levels of heaven, three levels of hell, three levels to human life and, ultimately, three aspects of the Lord Himself: Father, Son and Holy Spirit.