In Isaiah 19:15, this signifies the interiors and exteriors of the church. (Arcana Coelestia 9656[2])

7885. 'Seven days' means what is holy. This is clear from the meaning of 'seven' as a number that implies holiness, and of 'seven days' as that which is holy. For 'seven' as a number implying holiness, see 395, 433, 716, 881, 5265, 5268.