'A whale,' as in Jeremiah 51:34, signifies people who possess the universal aspects of the knowledges of faith, as known, and apply them to evil purposes. 'Whales,' or 'great fishes,' are sometimes mentioned in the prophets, and are used to signify the universal aspects of knowledges

(Verweise: Arcana Coelestia 42)

528. Verse 13. And I beheld, and I heard one angel flying in the midst of heaven, saying with a great voice, Woe, woe, woe, to them that dwell on the earth, by reason of the other voices of the trumpet of the three angels which are about to sound!- "And I beheld, and I heard one angel flying in the midst of heaven," signifies the Lord enlightening all in the heavens concerning the state of the church at its end; "saying with a great voice," signifies in manifestation; "Woe, woe, woe, to them that dwell on the earth by reason of the other voices of the trumpet of the three angels which are about to sound," signifies grievous lamentation over the changes of the state of the church, on account of the turning away from good and truth, and thence damnation.