Arcana Coelestia # 9819
9819. 'And they shall make Aaron's garments' means through whom the spiritual kingdom exists. This is clear from the meaning of 'Aaron's garments' as a representative sign of the Lord's spiritual kingdom lying adjacent to His celestial kingdom, dealt with above in 9814. The reason why the wise at heart, filled with the spirit of wisdom, were to make those garments is that by these people those in the celestial kingdom are meant, and the spiritual kingdom is what springs from and so what covers that celestial kingdom like a garment next to the body, as also becomes clear from the things that have been stated in 9818.
Isaiah 63:9-11
9
In all their affliction he was afflicted, and the angel of his presence saved them: in his love and in his pity he redeemed them; and he bore them, and carried them all the days of old.
10
But they rebelled, and grieved his holy Spirit: therefore he was turned to be their enemy, [and] himself fought against them.
11
Then he remembered the days of old, Moses [and] his people, [saying], Where is he who brought them up out of the sea with the shepherds of his flock? Where is he who put his holy Spirit in the midst of them?