Apocalypse Explained # 402
402. Verse 13. And the stars of heaven fell unto the earth, signifies that the knowledges of good and truth perished. This is evident from the signification of "stars" as being the knowledges of good and truth (See above, n. 72); also from the signification of "falling unto the earth," as being to perish; for when stars fall to the earth they perish. The same is signified by:
The stars shall fall from heaven (Matthew 24:29; and Mark 13:25).
Anyone can see that "stars" here do not mean stars, for these cannot fall from heaven, for they are fixed or established in their place, and cannot fall to the earth, because they are larger than the earth; consequently by them are signified such things as belong to heavenly light, and give light, which are the knowledges of good and truth. Moreover, stars appear in the angelic heaven, but they are appearances from the knowledges of good and truth, therefore they appear about those who are in such knowledges, especially when they turn them over in the mind, and are desirous of knowing them.
Arcana Coelestia # 9888
9888. 'Before the face of it' means to eternity. This is clear from the meaning of 'before the face' as to eternity; for 'the breastplate' means heaven and every good and truth that constitutes it, 9879. What is 'before the face' in heaven is in the Lord's everlasting sight, thus is preserved to eternity.