Arcana Coelestia #1196
1196. 'Pathrusim and Casluhim' are nations so called who mean matters of doctrine that are formed into rituals from a similar origin and that exist solely as items of knowledge. This is evident from what has been stated, and from the fact that they follow in that sequence. Regarding the Pathrusim, see Isaiah 11:11-12; Ezekiel 29:13-15; 30:13-14; Jeremiah 44:1, 15.
Three
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.