Resurrection, the first
'The first resurrection,' mentioned in Revelation 20:5, 6, does not mean a first resurrection, but the essence and primary part of resurrection, which is salvation and eternal life. There is only one resurrection to life. A second does not happen, and is not mentioned anywhere in the Bible.
(References: Apocalypse Explained 6; Apocalypse Revealed 851; Revelation 20:5-6)
Arcana Coelestia #9941
9941. Verses 39-40 And you shall weave the tunic in checker work of fine linen, 1 and you shall make the turban of fine linen; and the belt you shall make with the work of an embroiderer. And for Aaron's sons you shall make tunics, and you shall make belts for them, and you shall make headdresses for them, for glorious adornment. 2
'And you shall weave the tunic in checker work of fine linen' means the inmost things of the spiritual kingdom, emanating from the truths of celestial love. 'And you shall make the turban of fine linen' means the wisdom there. 'And the belt' means a bond, and a separation from the outward things of that kingdom. 'You shall make with the work of an embroiderer' means through cognitions or knowledge of goodness and truth. 'And for Aaron's sons' means Divine Truths emanating in the heavens from the Lord's Divine Good. 'You shall make tunics' means the things that belong to faith there. 'And you shall make belts for them' means a holding in connection. 'And you shall make headdresses for them' means the intelligence there. 'For glorious adornment' means the spiritual Church's truth.
Footnotes:
1. i.e. an all-white garment made of linen containing checks in the weave
2. literally, for glory and for adornment (decus)