Apocalypse Explained # 432
432. Verse 5. Of the tribe of Judah twelve thousand sealed; of the tribe of Reuben twelve thousand sealed; of the tribe of Gad twelve thousand sealed.
5. "Of the tribe of Judah twelve thousand sealed," signifies love to the Lord, and that all who are in that love are in heaven, and come into heaven n. 433; "of the tribe of Reuben twelve thousand sealed," signifies the light of truth from that good, and that all who are in that light are in heaven and come into heaven n. 434; "of the tribe of Gad twelve thousand sealed," signifies the consequent good of life (n. 435, 436).
Arcana Coelestia # 5603
5603. 'And Judah said to Israel his father' means a perception received from the good of the Church regarding these matters. This is clear from the meaning of 'saying' in the historical narratives of the Word as perceiving, often dealt with already; from the representation of 'Judah' as the good of the Church, dealt with above in 5583; and from the representation of 'Israel' as the internal spiritual Church, dealt with in 3305, 4286. From this it is evident that 'Judah said to Israel his father' means a perception the Church had which it received from its own good.