Arcana Coelestia # 165
165. The nakedness of which they were not ashamed means innocence. This is quite clear from what follows. When integrity and innocence left them they were then ashamed of their nakedness, and it seemed disgraceful to them, and so they hid themselves. It is additionally clear from the things represented in the world of spirits that the nakedness of which they were not ashamed means innocence. Indeed when spirits wish to exonerate themselves and prove that they are blameless they present themselves naked to witness their innocence. This is particularly clear with the innocent in heaven, who look like young children, naked, and wearing garlands round them that accord with their particular variety of innocence. But those who do not possess so much innocence appear clothed in splendid and shining clothes - you might call them brightest silk - like angels when seen from time to time by the prophets.
Arcana Coelestia # 289
289. 'Wife' is used to mean the Church, in the universal sense the Lord's kingdom in heaven and on earth. This too has been shown already, while the fact that 'mother' as well has the same meaning follows from this. In the Word the Church is commonly called 'mother', as in Isaiah,
Where is your mother's bill of divorce? Isaiah 50:1.
In Jeremiah,
Your, mother has been utterly shamed, she who bore you is covered with shame. Jeremiah 50:12.
In Ezekiel,
[You are] your mother's daughter who loathes her husband and her sons. Your mother is a Hittite and your father an Amorite. Ezekiel 16:45.
Here 'husband' (vir) stands for the Lord and everything celestial, 'sons for truths of faith, 'Hittite' for falsity, and 'Amorite' for evil. In the same prophet,
Your mother was like a vine in your likeness, planted beside the waters, fruitful, full of branches by reason of many waters. Ezekiel 19:10.
Here 'mother' stands for the Ancient Church. The Most Ancient Church is pre-eminently called a 'mother' because it was the first Church, and the only one to be celestial. For that reason it was the Lord's beloved more than any other.