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#10512
10512. 'Which Aaron made' means that it exists as a result of the external things which alone they love. This is clear from the representation of 'Aaron' as the external side of the Word, the Church, and worship, dealt with in 10397, 10468, 10480. When the external alone is loved the external is said to make that [idol]; but the nation which loves external things alone should be understood by this.