Apocalypse Explained # 528
528. Verse 13. And I saw, and I heard one angel flying in midheaven, saying with a great voice, Woe, woe, woe, to those that dwell on the earth, from the remaining voices of the trumpet of the three angels who are about to sound.
13. "And I saw, and I heard one angel flying in midheaven," signifies the Lord enlightening all in the heavens respecting the state of the church at its end n. 529; "saying with a great voice," signifies manifestation (n. 530); "Woe, woe, woe, to those that dwell on the earth, from the remaining voices of the trumpet of the three angels who are about to sound," signifies grievous lamentation over the changes of state of the church, on account of the aversion from good and truth, and consequent damnation (n. 531, 532).
Arcana Coelestia # 1018
1018. The reason why the statement found in verse 1 of this chapter 'be fruitful and multiply' is repeated here is that the conclusion is reached at this point. This statement means that everything will go well and will bear fruit and multiply if people refrain from what is meant by 'eating blood' and by 'shedding blood', that is to say, if they do not destroy charity by acts of hatred and profanation.